Lua APA (7ú heag.)

Gestwicki, C. (1999). The essentials of early education (First Canadian edition.). ITP Nelson.

Lua i Stíl Chicago (17ú heag.)

Gestwicki, Carol. The Essentials of Early Education. First Canadian edition. Toronto, Ont.: ITP Nelson, 1999.

Lua MLA (8ú heag.)

Gestwicki, Carol. The Essentials of Early Education. First Canadian edition. ITP Nelson, 1999.

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