Gaya APA

Nawawi, H. et al (1994,1986,1990,1998). Genetika Strata 1 . Yogyakarta: Gadjah Mada University Press.

Gaya MLA

Nawawi, Hadari. et al. "Genetika Strata 1". Yogyakarta: Gadjah Mada University Press, 1994,1986,1990,1998. Text.