Dyfyniad APA

Berry, D., & Cutts, R. (1986). Plants. Time-Life Books.

Dyfyniad Arddull Chicago

Berry, Dick, and Robert Cutts. Plants. Hong Kong: Time-Life Books, 1986.

Dyfyniad MLA

Berry, Dick, and Robert Cutts. Plants. Time-Life Books, 1986.

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