Cervero, R. M. (1988). Effective continuing education for professionals. Jossey-Bass.
Dyfyniad Arddull ChicagoCervero, Ronald M. Effective Continuing Education for Professionals. San Francisco: Jossey-Bass, 1988.
Dyfyniad MLACervero, Ronald M. Effective Continuing Education for Professionals. Jossey-Bass, 1988.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.