Lonely Planet California & Southwest USA's National Parks (National Parks Guide)
Ham, Anthony/Atkinson, Brett/Balfour, Amy C/Bell, Loren/Benchwick, Greg/Brash, Celeste/Bremner, Jade/Clark, Gregor/Denniston, Jennifer Rasin/Grosberg, Michael/Harrell, Ashley/Isalska, Anita/Johanson, Mark/Mayhew, Bradley/McCarthy, Carolyn/Pitts, Christopher/Sainsbury, Brendan/Schulte-Peevers, Andrea/St Louis, Regis/Ward, Greg/Zimmerman, Karla
Lonely Planet USA's National Parks (National Parks Guide)
Isalska, Anita/Balfour, Amy C/Bell, Loren/Benchwick, Greg/Bremner, Jade/Denniston, Jennifer Rasin/Grosberg, Michael/Mayhew, Bradley/McCarthy, Carolyn/Pitts, Christopher/Sainsbury, Brendan/St Louis, Regis