APA-čujuhus (7. p.)
Burns, M. (1996). 50 problem-solving lessons: Grades 1-6. Math Solutions Publications ; Distributed by Cuisenaire Company of America.
Chicago-čujuhus (17. p.)
Burns, Marilyn. 50 Problem-solving Lessons: Grades 1-6. Sausalito, CA : White Plains, NY: Math Solutions Publications ; Distributed by Cuisenaire Company of America, 1996.
MLA-čujuhus (9. p.)
Burns, Marilyn. 50 Problem-solving Lessons: Grades 1-6. Math Solutions Publications ; Distributed by Cuisenaire Company of America, 1996.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.