MLA

Thornton, John Leonard, and Geoffrey Keynes. Medical Books, Libraries and Collectors : a Study of Bibliography and the Book Trade In Relation to the Medical Sciences. 2nd revised edition London: Deutsch, 1966.

APA

Thornton, J. Leonard, & Keynes, G. (1966). Medical books, libraries and collectors : a study of bibliography and the book trade in relation to the medical sciences. 2nd revised edition London: Deutsch.

Chicago

Thornton, John Leonard, and Geoffrey Keynes. Medical Books, Libraries and Collectors: A Study of Bibliography and the Book Trade In Relation to the Medical Sciences. 2nd revised edition London: Deutsch, 1966.