APA (7th ed.) Citation

Frear, D. E. H. (1950). Agricultural chemistry: A reference text. Van Nostrand.

Chicago Style (17th ed.) Citation

Frear, Donald E. H. Agricultural Chemistry: A Reference Text. New York: Van Nostrand, 1950.

MLA (9th ed.) Citation

Frear, Donald E. H. Agricultural Chemistry: A Reference Text. Van Nostrand, 1950.