Holttum, R., & Enoch, I. (1991). Gardening in the tropics. Timber Press.
Lua i Stíl Chicago (17ú heag.)Holttum, R.E, agus Ivan Enoch. Gardening in the Tropics. Portland, Oregon: Timber Press, 1991.
Lua MLA (9ú heag.)Holttum, R.E, agus Ivan Enoch. Gardening in the Tropics. Timber Press, 1991.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.