APA (7th ed.) Citation

Collings, G. H. (1955). Commercial fertilizers; their resources and use. 5th. ed. McGraw-Hill.

Chicago Style (17th ed.) Citation

Collings, Gilbert H. Commercial Fertilizers; Their Resources and Use. 5th. Ed. New York: McGraw-Hill, 1955.

MLA (9th ed.) Citation

Collings, Gilbert H. Commercial Fertilizers; Their Resources and Use. 5th. Ed. McGraw-Hill, 1955.