Analysis of information sources in references of the Wikipedia article "William Willoughby, 5th Baron Willoughby de Eresby" in English language version.
{{cite book}}
: CS1 maint: location missing publisher (link) ISBN 144996639X Richardson, Douglas (2011). Magna Carta Ancestry: A Study in Colonial and Medieval Families, ed. Kimball G. Everingham. Vol. IV (2nd ed.). Salt Lake City.{{cite book}}
: CS1 maint: location missing publisher (link) ISBN 1460992709 Hicks, Michael (2004). "Willoughby family (per. c.1300–1523)". Oxford Dictionary of National Biography (online ed.). Oxford University Press. doi:10.1093/ref:odnb/52801. Retrieved 6 December 2012. (Subscription or UK public library membership required.) (subscription required){{cite book}}
: CS1 maint: location missing publisher (link) ISBN 1449966373 Richardson, Douglas (2011). Magna Carta Ancestry: A Study in Colonial and Medieval Families, ed. Kimball G. Everingham. Vol. III (2nd ed.). Salt Lake City.{{cite book}}
: CS1 maint: location missing publisher (link) ISBN 144996639X Richardson, Douglas (2011). Magna Carta Ancestry: A Study in Colonial and Medieval Families, ed. Kimball G. Everingham. Vol. IV (2nd ed.). Salt Lake City.{{cite book}}
: CS1 maint: location missing publisher (link) ISBN 1460992709 Holmes, George (2004). "Latimer, William, fourth Baron Latimer (1330–1381)". Oxford Dictionary of National Biography (online ed.). Oxford University Press. doi:10.1093/ref:odnb/16103. Retrieved 6 December 2012. (Subscription or UK public library membership required.) (subscription required){{cite book}}
: CS1 maint: location missing publisher (link) ISBN 144996639X Richardson, Douglas (2011). Magna Carta Ancestry: A Study in Colonial and Medieval Families, ed. Kimball G. Everingham. Vol. IV (2nd ed.). Salt Lake City.{{cite book}}
: CS1 maint: location missing publisher (link) ISBN 1460992709 Hicks, Michael (2004). "Willoughby family (per. c.1300–1523)". Oxford Dictionary of National Biography (online ed.). Oxford University Press. doi:10.1093/ref:odnb/52801. Retrieved 6 December 2012. (Subscription or UK public library membership required.) (subscription required){{cite book}}
: CS1 maint: location missing publisher (link) ISBN 1449966373 Richardson, Douglas (2011). Magna Carta Ancestry: A Study in Colonial and Medieval Families, ed. Kimball G. Everingham. Vol. III (2nd ed.). Salt Lake City.{{cite book}}
: CS1 maint: location missing publisher (link) ISBN 144996639X Richardson, Douglas (2011). Magna Carta Ancestry: A Study in Colonial and Medieval Families, ed. Kimball G. Everingham. Vol. IV (2nd ed.). Salt Lake City.{{cite book}}
: CS1 maint: location missing publisher (link) ISBN 1460992709 Holmes, George (2004). "Latimer, William, fourth Baron Latimer (1330–1381)". Oxford Dictionary of National Biography (online ed.). Oxford University Press. doi:10.1093/ref:odnb/16103. Retrieved 6 December 2012. (Subscription or UK public library membership required.) (subscription required)