Gaya APA

(Editor), Z, A. (2013). The Royal Horticultural Society: What Plant Where Encyclopedia with More than 3000 Plants . London: Dorling Kindersley Limited.

Gaya MLA

(Editor), Zia, Allaway. "The Royal Horticultural Society: What Plant Where Encyclopedia with More than 3000 Plants". London: Dorling Kindersley Limited, 2013. Elektronik/Digital.