S.E. Urban and P. Kenneth Seidelmann (eds), Explanatory Supplement to the Astronomical Almanac: Third Edition (Mill Valley [CA]: University Science Books, 2013), ISBN978-1-891389-85-6 – list of errataArchived 2021-04-17 at the Wayback Machine.
S.E. Urban and P. Kenneth Seidelmann (eds), Explanatory Supplement to the Astronomical Almanac: Third Edition (Mill Valley [CA]: University Science Books, 2013), ISBN978-1-891389-85-6 – list of errataArchived 2021-04-17 at the Wayback Machine.