APA Style
Hay, Robert, Porter, John. (2006).
THE PHYSIOLOGY OF CROP YIELD, Second Edition .
Oxford:
Blackwell Publishing Ltd.
Chicago Style
Hay, Robert, Porter, John.
THE PHYSIOLOGY OF CROP YIELD, Second Edition.
Oxford:
Blackwell Publishing Ltd,
2006.
Text.
MLA Style
Hay, Robert, Porter, John.
THE PHYSIOLOGY OF CROP YIELD, Second Edition.
Oxford:
Blackwell Publishing Ltd,
2006.
Text.
Turabian Style
Hay, Robert, Porter, John.
THE PHYSIOLOGY OF CROP YIELD, Second Edition.
Oxford:
Blackwell Publishing Ltd,
2006.
Print.