Tohutoro APA (7th ed.)

Burns, M. (1996). 50 problem-solving lessons: Grades 1-6. Math Solutions Publications ; Distributed by Cuisenaire Company of America.

Tohutoru Kātū Chicago (17th ed.)

Burns, Marilyn. 50 Problem-solving Lessons: Grades 1-6. Sausalito, CA : White Plains, NY: Math Solutions Publications ; Distributed by Cuisenaire Company of America, 1996.

Tohutoro MLA (9th ed.)

Burns, Marilyn. 50 Problem-solving Lessons: Grades 1-6. Math Solutions Publications ; Distributed by Cuisenaire Company of America, 1996.