Gaya APA
Contemporary plant systematics. (1991).
New Jersey:
Prentice-Hall of India.
Gaya Chicago
Contemporary plant systematics.
.
New Jersey:
Prentice-Hall of India,
1991.
Buku.
Gaya MLA
Contemporary plant systematics.
.
New Jersey:
Prentice-Hall of India,
1991.
Buku.
Gaya Turabian
Contemporary plant systematics.
New Jersey:
Prentice-Hall of India,
1991.
Buku.