Παραπομπή APA

Buxton, W. (1957). Book - keeping simplified. Sir isaac pitman and sons.

Παραπομπή Chicago Style

Buxton, W.O. Book - Keeping Simplified. London: Sir isaac pitman and sons, 1957.

Παραπομπή MLA

Buxton, W.O. Book - Keeping Simplified. Sir isaac pitman and sons, 1957.