Combs, M. (1997). Developing competent readers and writers in the middle grades. Merrill.
Čikaški stil citiranja (17. izdanje)Combs, Martha. Developing Competent Readers and Writers in the Middle Grades. Upper Saddle River, N.J: Merrill, 1997.
MLA način citiranja (9. izdanje)Combs, Martha. Developing Competent Readers and Writers in the Middle Grades. Merrill, 1997.
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