by Alexander W. Astin ... [et al.]Higher Education Research Institute : Graduate School of Education & Information Studies, University of California, c20022002
carried out for the Commission of the European Communities by Gisela Baumgratz-Gangl ; in collaboration with Nathalie Deyson ; translated by Catherine TrotterOffice for Official Publications of the European Communities1990
prepared by the staff of the Cooperative Institutional Research Program, Alexander W. Astin, Kenneth C. Green, William S. KornHigher Education Research Institute : Graduate School of Education, University of California[1987]