Παραπομπή APA

Hooper, W. (1958). Book - keeping for beginners. Sir Isaac pitman &sons.

Παραπομπή Chicago Style

Hooper, W.E. Book - Keeping for Beginners. Llondon: Sir Isaac pitman &sons, 1958.

Παραπομπή MLA

Hooper, W.E. Book - Keeping for Beginners. Sir Isaac pitman &sons, 1958.