APA-čujuhus (7. p.)
ebrary, Inc, & Sornson, R. (2001). Preventing early learning failure. Association for Supervision & Curriculum Development.
Chicago-čujuhus (17. p.)
ebrary, Inc, juo Robert Sornson. Preventing Early Learning Failure. Alexandria, Va.: Association for Supervision & Curriculum Development, 2001.
MLA-čujuhus (9. p.)
ebrary, Inc, juo Robert Sornson. Preventing Early Learning Failure. Association for Supervision & Curriculum Development, 2001.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.