Gaya APA
Comparative Morphology of Vascular Plants. (1974).
San francisco:
Freeman and company.
Gaya Chicago
Comparative Morphology of Vascular Plants.
2.
San francisco:
Freeman and company,
1974.
Buku.
Gaya MLA
Comparative Morphology of Vascular Plants.
2.
San francisco:
Freeman and company,
1974.
Buku.
Gaya Turabian
Comparative Morphology of Vascular Plants.
San francisco:
Freeman and company,
1974.
Buku.