Yosemite : an American treasure/ Kenneth Brower ; prep. by the Special Publications Division, National Geographic Society. (2 adet) Yosemite : an American treasure/ Kenneth Brower. (1 adet)
Preschool Adequacy and Efficiency in California/ David E. ; Niblack Mosher (1 adet) Preschool Adequacy and Efficiency in California/ Lynn A. ; LaTourrette Karoly (1 adet) Preschool Adequacy and Efficiency in California/ Lynn A.;LaTourrette Karoly (1 adet)