• G. W. short course no.1 

        Author(s):Code, W. E. (William E.), 1891-; Longenbaugh, R. A. (Robert A.); Glover, Robert E. (Robert Ellsworth), 1896-
        Date:1967
        Short course on groundwater given at Colorado State University in the summer of 1967; instructors include William E. Code, Robert A. Longenbaugh, Robert E. Glover, Dave Snow, D. K. Sunada, and Morton W. Bittinger