Citazione APA

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

Stile di citazione Chicago

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

Citazione MLA

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