Balfour, A. C., Ohlsen, B., McCarthy, C., Matchar, E., Benchwick, G., & St. Louis, R. (2021). National parks of America (Second edition.). Lonely Planet Global Limited.
Cita Chicago Style (17a ed.)Balfour, Amy C., Becky Ohlsen, Carolyn McCarthy, Emily Matchar, Greg Benchwick, y Regis St. Louis. National Parks of America. Second edition. Franklin, TN: Lonely Planet Global Limited, 2021.
Cita MLA (8a ed.)Balfour, Amy C., et al. National Parks of America. Second edition. Lonely Planet Global Limited, 2021.
Precaución: Estas citas no son 100% exactas.