Cross, K. P. (1981). Adults as learners. Jossey-Bass.
Chicago-čujuhus (17. p.)Cross, K. Patricia. Adults as Learners. San Francisco: Jossey-Bass, 1981.
MLA-čujuhus (9. p.)Cross, K. Patricia. Adults as Learners. Jossey-Bass, 1981.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.