Shive, I. (2015). The National Parks: An American legacy : celebrating 100 years of the National Park Service. Earth Aware Editions.
Cita Chicago Style (17a ed.)Shive, Ian. The National Parks: An American Legacy : Celebrating 100 Years of the National Park Service. San Rafael, California: Earth Aware Editions, 2015.
Cita MLA (8a ed.)Shive, Ian. The National Parks: An American Legacy : Celebrating 100 Years of the National Park Service. Earth Aware Editions, 2015.
Precaución: Estas citas no son 100% exactas.