Cross, K. P. (1981). Adults as learners: Increasing participation and facilitating learners. Jossey-Bass.
Dyfyniad Arddull ChicagoCross, K. Patricia. Adults as Learners: Increasing Participation and Facilitating Learners. San Francisco: Jossey-Bass, 1981.
Dyfyniad MLACross, K. Patricia. Adults as Learners: Increasing Participation and Facilitating Learners. Jossey-Bass, 1981.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.