APA (7th ed.) Citation

Butler, O. (1935). American conservation in picture and in story. The American forestry association.

Chicago Style (17th ed.) Citation

Butler, Ovid. American Conservation in Picture and in Story. Washington, D.C.: The American forestry association, 1935.

MLA (9th ed.) Citation

Butler, Ovid. American Conservation in Picture and in Story. The American forestry association, 1935.