APA Style
Hay, Robert K.M.. (1989).
An Introduction To The Physiology Of Crop Yiels (4 th).
:
Longman Scientific & Technical.
Chicago Style
Hay, Robert K.M..
An Introduction To The Physiology Of Crop Yiels.
4 th
:
Longman Scientific & Technical,
1989.
Text.
MLA Style
Hay, Robert K.M..
An Introduction To The Physiology Of Crop Yiels.
4 th
:
Longman Scientific & Technical,
1989.
Text.
Turabian Style
Hay, Robert K.M..
An Introduction To The Physiology Of Crop Yiels.
4 th
:
Longman Scientific & Technical,
1989.
Print.