Astin, A. W. (1991). Achieving educational excellencea critical assessment of priorities and practices in higher educationAlexander W. Astin. Jossey-Bass.
Παραπομπή σε μορφή Chicago (17η εκδ.)Astin, Alexander W. Achieving Educational Excellencea Critical Assessment of Priorities and Practices in Higher EducationAlexander W. Astin. Jossey-Bass, 1991.
Παραπομπή σε μορφή MLA (8th εκδ.)Astin, Alexander W. Achieving Educational Excellencea Critical Assessment of Priorities and Practices in Higher EducationAlexander W. Astin. Jossey-Bass, 1991.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.