Gaya APA
Tjitrosoepomo, G. et al (2000,1994,1992,1997,2013,2020).
Morfologi Tumbuhan (-).
Yogyakarta:
Gadjahmada University Press.
Gaya MLA
Tjitrosoepomo, Gembong. et al.
"Morfologi Tumbuhan".
-
Yogyakarta:
Gadjahmada University Press,
2000,1994,1992,1997,2013,2020.
Text.