Bertagna, J. (2019). Wildheart: The daring adventures of John Muir (North American edition.). Yosemite Conservancy.
Cita Chicago Style (17a ed.)Bertagna, Julie. Wildheart: The Daring Adventures of John Muir. North American edition. Yosemite National Park: Yosemite Conservancy, 2019.
Cita MLA (8a ed.)Bertagna, Julie. Wildheart: The Daring Adventures of John Muir. North American edition. Yosemite Conservancy, 2019.
Precaución: Estas citas no son 100% exactas.