(1990). New directions for adult and continuing education. Jossey-Bass, Inc..
Cita Chicago (17th ed.)New Directions for Adult and Continuing Education. San Francisco: Jossey-Bass, Inc., 1990.
Cita MLA (9th ed.)New Directions for Adult and Continuing Education. Jossey-Bass, Inc., 1990.
Atenció: Aquestes cites poden no estar 100% correctes.