 University of California , Berkeley : assistant professor , 1957 – 59 ; professor , 1959 – 62 ; professor of sociology , 1962 – 68 ; 
 University of California , Berkeley : assistant professor , 1957 – 59 ; professor , 1959 – 62 ; professor of sociology , 1962 – 68 ; 
University of California , Berkeley : assistant professor , 1957 – 59 ; professor , 1959 – 62 ; professor of sociology , 1962 – 68 ;