APA (7th ed.) Citation

Engel, D. H., & Suchart Phummai. (2000). What's that tree?: A field guide to tropical plants of Asia. Times Editions.

Chicago Style (17th ed.) Citation

Engel, David H., and Suchart Phummai. What's That Tree?: A Field Guide to Tropical Plants of Asia. Singapore: Times Editions, 2000.

MLA (9th ed.) Citation

Engel, David H., and Suchart Phummai. What's That Tree?: A Field Guide to Tropical Plants of Asia. Times Editions, 2000.