Gaya APA
Environment and plant Ecology. (1975).
New Delhi:
Wiley Eastern Limited.
Gaya Chicago
Environment and plant Ecology.
.
New Delhi:
Wiley Eastern Limited,
1975.
Buku.
Gaya MLA
Environment and plant Ecology.
.
New Delhi:
Wiley Eastern Limited,
1975.
Buku.
Gaya Turabian
Environment and plant Ecology.
New Delhi:
Wiley Eastern Limited,
1975.
Buku.