APA (7th ed.) Citation

Boo, C. M., Omar-Hor, K., & Ou-Yang, C. L. (2006). 1001 garden plants in Singapore (2nd edition.). National Parks Board.

Chicago Style (17th ed.) Citation

Boo, Chih Min, Kartini Omar-Hor, and Chow Lin Ou-Yang. 1001 Garden Plants in Singapore. 2nd edition. Singapore: National Parks Board, 2006.

MLA (9th ed.) Citation

Boo, Chih Min, et al. 1001 Garden Plants in Singapore. 2nd edition. National Parks Board, 2006.