Παραπομπή APA

Cousins, D. (1941). Teach yourself book-keeping: An introduction to book keeping and business methods.

Παραπομπή Chicago Style

Cousins, Donald. Teach Yourself Book-keeping: An Introduction to Book Keeping and Business Methods. London, The English language Bok Society, 1941.

Παραπομπή MLA

Cousins, Donald. Teach Yourself Book-keeping: An Introduction to Book Keeping and Business Methods. 1941.