Tohutoro APA (7th ed.)

Duerr, W. A. (1960). Fundamentals of Forestry economics.: William A. Duerr. McGraw-Hill.

Tohutoru Kātū Chicago (17th ed.)

Duerr, William A. Fundamentals of Forestry Economics.: William A. Duerr. New York: McGraw-Hill, 1960.

Tohutoro MLA (9th ed.)

Duerr, William A. Fundamentals of Forestry Economics.: William A. Duerr. McGraw-Hill, 1960.