Dyfyniad APA

Emboden, W. (1979). Narcotic plants: Revised and enlarged. Collier Books.

Dyfyniad Arddull Chicago

Emboden, William. Narcotic Plants: Revised and Enlarged. Collier Books, 1979.

Dyfyniad MLA

Emboden, William. Narcotic Plants: Revised and Enlarged. Collier Books, 1979.

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