Dyfyniad APA

Spence, I. (2003). Royal Horticultural Society garden plants and flowers. Dorling Kindersley.

Dyfyniad Arddull Chicago

Spence, Ian. Royal Horticultural Society Garden Plants and Flowers. London: Dorling Kindersley, 2003.

Dyfyniad MLA

Spence, Ian. Royal Horticultural Society Garden Plants and Flowers. Dorling Kindersley, 2003.

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