Gaya APA

Tjitrosoepomo, G., Teeuw, A. (2000,1988,1993,2002). Taksonomi Tumbuhan ( Spermatophyta ) . Yogyakarta: Gadjah Mada University Press.

Gaya MLA

Tjitrosoepomo, Gembong., Teeuw, A.. "Taksonomi Tumbuhan ( Spermatophyta )". Yogyakarta: Gadjah Mada University Press, 2000,1988,1993,2002. Text.