Mengak. Reshaping Our National Parks and Their Guardians. University of New Mexico Press.
Cita Chicago (17th ed.)Mengak. Reshaping Our National Parks and Their Guardians. University of New Mexico Press.
Cita MLA (8th ed.)Mengak. Reshaping Our National Parks and Their Guardians. University of New Mexico Press.
Atenció: Aquestes cites poden no estar 100% correctes.