Handy, L. C. a. M. (1973). Behavior change: Methodology, concepts and practice (ed.). Research Press Company.
Chicago-čujuhus (17. p.)Handy, Lee C. and Mash. Behavior Change: Methodology, Concepts and Practice. ed. Illions: Research Press Company, 1973.
MLA-čujuhus (9. p.)Handy, Lee C. and Mash. Behavior Change: Methodology, Concepts and Practice. ed. Research Press Company, 1973.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.