APA-referens (7:e uppl.)

Ostendorf, F. W. (1933). De groei van jonge hevea-oculaties: With summary: the growth of young hevea buddings. H. Veenman & Zonen.

Chicago-referens (17:e uppl.)

Ostendorf, F. W. De Groei Van Jonge Hevea-oculaties: With Summary: The Growth of Young Hevea Buddings. Wageningen: H. Veenman & Zonen, 1933.

MLA-referens (8:e uppl.)

Ostendorf, F. W. De Groei Van Jonge Hevea-oculaties: With Summary: The Growth of Young Hevea Buddings. H. Veenman & Zonen, 1933.