ISENBERG, J. P., & JACOBS, J. E. (1982). Playthings as learning tools: A parents guide. John Wiley and Sons.
Chicago Style (17. basım) AtıfISENBERG, Joan P., ve Judith E. JACOBS. Playthings as Learning Tools: A Parents Guide. New York: John Wiley and Sons, 1982.
MLA (9th ed.) AtıfISENBERG, Joan P., ve Judith E. JACOBS. Playthings as Learning Tools: A Parents Guide. John Wiley and Sons, 1982.
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