Murphy, A. (1994). Graced by pines: The Ponderosa pine in the American West. Mountain Press Pub. Co..
Cita Chicago Style (17a ed.)Murphy, Alexandra. Graced by Pines: The Ponderosa Pine in the American West. Missoula, Mont.: Mountain Press Pub. Co., 1994.
Cita MLA (8a ed.)Murphy, Alexandra. Graced by Pines: The Ponderosa Pine in the American West. Mountain Press Pub. Co., 1994.
Precaución: Estas citas no son 100% exactas.