Dyfyniad APA

Phillips, E., & Burrell, C. C. (1993). Rodale's illustrated encyclopedia of perennials. Emmaus, Pa.: Rodale Press.

Dyfyniad Arddull Chicago

Phillips, Ellen., and C. Colston Burrell. Rodale's Illustrated Encyclopedia of Perennials. Emmaus, Pa.: Rodale Press, 1993.

Dyfyniad MLA

Phillips, Ellen., and C. Colston Burrell. Rodale's Illustrated Encyclopedia of Perennials. Emmaus, Pa.: Rodale Press, 1993.

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