Hzn, D. B. (1972). Seedlings of some tropical trees and shrubs mainly of South East Asia. Centre for Agricultural Publishing and Documentation.
Chicago-referens (17:e uppl.)Hzn, D. Burger. Seedlings of Some Tropical Trees and Shrubs Mainly of South East Asia. Wageningen: Centre for Agricultural Publishing and Documentation, 1972.
MLA-referens (9:e uppl.)Hzn, D. Burger. Seedlings of Some Tropical Trees and Shrubs Mainly of South East Asia. Centre for Agricultural Publishing and Documentation, 1972.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.