Παραπομπή APA

Butler, A. (1971). Everyman's dictionary of dates (6th edition.). J.M.Dent.

Παραπομπή Chicago Style

Butler, Audrey. Everyman's Dictionary of Dates. 6th edition. London: J.M.Dent, 1971.

Παραπομπή MLA

Butler, Audrey. Everyman's Dictionary of Dates. 6th edition. J.M.Dent, 1971.