Tolong jelaskan mengenai Rujukan dari Lembah Yosemite dalam bahasa melayu

A Natural History of California, Allan A. Schoenherr, UC Press, ISBN 0-520-06922-6

Geology of National Parks: Fifth Edition, Ann G. Harris, Esther Tuttle, Sherwood D., Tuttle (Iowa, Kendall/Hunt Publishing; 1997) ISBN 0-7872-5353-7

Camp 4: Recollections of a Yosemite Rockclimber, Steve Roper, The Mountaineers, ISBN 0-89886-587-5