Analysis of information sources in references of the Wikipedia article "Oxfordian theory of Shakespeare authorship" in English language version.
{{cite book}}: ISBN / Date incompatibility (help){{citation}}: ISBN / Date incompatibility (help) Nelson, Alan H. (2003). Monstrous Adversary: The Life of Edward de Vere, 17th Earl of Oxford. Liverpool University Press. ISBN 978-0-85323-678-8. Retrieved 20 December 2010.{{cite book}}: ISBN / Date incompatibility (help){{cite book}}: ISBN / Date incompatibility (help)