Dyfyniad APA

Pepper, W. (1890). Benjamin Rush. Printed at the office of the Association.

Dyfyniad Arddull Chicago

Pepper, William. Benjamin Rush. Chicago: Printed at the office of the Association, 1890.

Dyfyniad MLA

Pepper, William. Benjamin Rush. Printed at the office of the Association, 1890.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.