Cita APA (7a ed.)

Gifford, J. (1911). Practical forestry. D.Appleton.

Cita Chicago Style (17a ed.)

Gifford, John. Practical Forestry. New York ; London: D.Appleton, 1911.

Cita MLA (9a ed.)

Gifford, John. Practical Forestry. D.Appleton, 1911.