APA (7th ed.) Citation

Holttum, R., & Enoch, I. (1991). Gardening in the tropics. Timber Press.

Chicago Style (17th ed.) Citation

Holttum, R.E, and Ivan Enoch. Gardening in the Tropics. Portland, Oregon: Timber Press, 1991.

MLA (9th ed.) Citation

Holttum, R.E, and Ivan Enoch. Gardening in the Tropics. Timber Press, 1991.