Nelson, M. R. (1992). Children and social studies: Creative teaching in elementary classroom (2nd.ed.). HBJ.
Lua i Stíl Chicago (17ú heag.)Nelson, Murry R. Children and Social Studies: Creative Teaching in Elementary Classroom. 2nd.ed. Forth Worth: HBJ, 1992.
Lua MLA (9ú heag.)Nelson, Murry R. Children and Social Studies: Creative Teaching in Elementary Classroom. 2nd.ed. HBJ, 1992.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.