Dyfyniad APA

Rees,A R. (1992). Ornamental bulbs, corms and tubers. CAB international.

Dyfyniad Arddull Chicago

Rees,A R. Ornamental Bulbs, Corms and Tubers. United Kingdom: CAB international, 1992.

Dyfyniad MLA

Rees,A R. Ornamental Bulbs, Corms and Tubers. CAB international, 1992.

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