University of Wisconsin. Center for Studies in Vocational and Technical Education, Somers, G. G., & Little, J. K. (1971). Vocational education: Today and tomorrow. Center for Studies in Vocational and Technical Education, University of Wisconsin.

University of Wisconsin. Center for Studies in Vocational and Technical Education, Gerald George Somers, and J. Kenneth Little. Vocational Education: Today and Tomorrow. [Madison]: Center for Studies in Vocational and Technical Education, University of Wisconsin, 1971.

University of Wisconsin. Center for Studies in Vocational and Technical Education, et al. Vocational Education: Today and Tomorrow. Center for Studies in Vocational and Technical Education, University of Wisconsin, 1971.