Cita APA (7th ed.)

Zivnuska, J. A. (1967). U.S. timber resources in a world economy. Resources for the Future; distributed by Johns Hopkins Press, Baltimore.

Cita Chicago (17th ed.)

Zivnuska, John A. U.S. Timber Resources in a World Economy. Washington: Resources for the Future; distributed by Johns Hopkins Press, Baltimore, 1967.

Cita MLA (8th ed.)

Zivnuska, John A. U.S. Timber Resources in a World Economy. Resources for the Future; distributed by Johns Hopkins Press, Baltimore, 1967.