APA (7th ed.) Citation

Hibbard, B. H. (1948). Agricultural economics. McGraw-Hill Book Co..

Chicago Style (17th ed.) Citation

Hibbard, Benjamin Horace. Agricultural Economics. New York: McGraw-Hill Book Co., 1948.

MLA (9th ed.) Citation

Hibbard, Benjamin Horace. Agricultural Economics. McGraw-Hill Book Co., 1948.