APA引文

Beckwith, J. A. (1987). Gem minerals of Idaho. Caxton Printers.

Chicago Style (17th ed.) Citation

Beckwith, John A. Gem Minerals of Idaho. Caldwell, Idaho: Caxton Printers, 1987.

MLA引文

Beckwith, John A. Gem Minerals of Idaho. Caxton Printers, 1987.

警告：這些引文格式不一定是100％准確.