APA-čujuhus (7. p.)
Leypoldt, M. M. (1967). 40 ways to teach in groups. Judson Press.
Chicago-čujuhus (17. p.)
Leypoldt, Martha M. 40 Ways to Teach in Groups. Valley Forge: Judson Press, 1967.
MLA-čujuhus (9. p.)
Leypoldt, Martha M. 40 Ways to Teach in Groups. Judson Press, 1967.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.