APA استشهاد

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

استشهاد بنمط شيكاغو

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

MLA استشهاد

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