The University of Wyoming (UW), the state's only 4-year institution, offers extended degree programs throughout the state and has as many students enrolled in credit courses off campus as on. This research was undertaken to gather data about student perceptions of library services and to establish baseline data on the characteristics of traditional, on-campus students and nontraditional, off-campus students throughout the state. A survey questionnaire was administered to a stratified sample of three populations: traditional, on-campus students attending classes in Laramie; nontraditional students attending classes at UW-Casper; and nontraditional, off-campus students attending extension classes throughout the state. A total of 1,022 questionnaires were administered; 80 were discarded as being too incomplete leaving 942 questionnaires as the basis for the analysis. The results are analyzed by three principal means: overall frequencies, cross tabulations, and discriminant analysis. A discussion of the results and statistical appendices cover demographic data, reasons for attending school, opinions and perceptions of library services, a vocational preference inventory, and results of the discriminant analysis. The study provides information about the differences and similarities between on- and off-campus students and insight into ways library services to off-campus students can be improved. (THC)