APA Style
Leonard, Warren H., Martin, John h.. (1949).
Principles of Field Crop Production (First Edition).
New York:
The Macmillan Company.
Chicago Style
Leonard, Warren H., Martin, John h..
Principles of Field Crop Production.
First Edition
New York:
The Macmillan Company,
1949.
Print.
MLA Style
Leonard, Warren H., Martin, John h..
Principles of Field Crop Production.
First Edition
New York:
The Macmillan Company,
1949.
Print.
Turabian Style
Leonard, Warren H., Martin, John h..
Principles of Field Crop Production.
First Edition
New York:
The Macmillan Company,
1949.
Print.