McKay, L. J., & Radencich, M. C. (1995). Flexible grouping for literacy in the elementary grades. Allyn and Bacon.
Lua i Stíl Chicago (17ú heag.)McKay, Lyn J., agus Marguerite C. Radencich. Flexible Grouping for Literacy in the Elementary Grades. Boston: Allyn and Bacon, 1995.
Lua MLA (9ú heag.)McKay, Lyn J., agus Marguerite C. Radencich. Flexible Grouping for Literacy in the Elementary Grades. Allyn and Bacon, 1995.
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