Dyfyniad APA

Keenan, T. (2002). An introduction to child development. SAGE Publications.

Dyfyniad Arddull Chicago

Keenan, Thomas. An Introduction to Child Development. London ; Thousand Oaks, Calif.: SAGE Publications, 2002.

Dyfyniad MLA

Keenan, Thomas. An Introduction to Child Development. SAGE Publications, 2002.

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