APA引文

Allen, H. (1939). Commercial arithmetic. Longmans, Green and Co.

Chicago Edition Citation

Allen, H.V. Commercial Arithmetic. London: Longmans, Green and Co, 1939.

MLA引文

Allen, H.V. Commercial Arithmetic. Longmans, Green and Co, 1939.

警告：這些引文格式不一定是100％准確.