Gaya APA
Tivy, Joy. (1993).
Agricultural ecology .
New York:
Longman Scientific and Technical.
Gaya Chicago
Tivy, Joy.
Agricultural ecology.
New York:
Longman Scientific and Technical,
1993.
Text.
Gaya MLA
Tivy, Joy.
Agricultural ecology.
New York:
Longman Scientific and Technical,
1993.
Text.
Gaya Turabian
Tivy, Joy.
Agricultural ecology.
New York:
Longman Scientific and Technical,
1993.
Print.