Bowen, H. R. (1977). Investment in learning: The individual and social value of American higher education. Jossey-Bass Publishers.
Cita Chicago (17th ed.)Bowen, Howard R. Investment in Learning: The Individual and Social Value of American Higher Education. San Francisco: Jossey-Bass Publishers, 1977.
Cita MLA (8th ed.)Bowen, Howard R. Investment in Learning: The Individual and Social Value of American Higher Education. Jossey-Bass Publishers, 1977.
Atenció: Aquestes cites poden no estar 100% correctes.