Gaya APA
Balbach, M., Bliss, L, C. (1991).
A Laboratory Manual for Botany (Ed. 7).
America:
Saunders College Publishing.
Gaya MLA
Balbach, Margaret., Bliss, Lawrence, C..
"A Laboratory Manual for Botany".
Ed. 7
America:
Saunders College Publishing,
1991.
Buku PPS Pend. Biologi.