Straub, R. O. (2009). Telecourse student guide to accompany child development stepping stones (Third edition.). Worth Publishers ; Coast Learning Systems.
Chicago Style (17. basım) AtıfStraub, Richard O. Telecourse Student Guide to Accompany Child Development Stepping Stones. Third edition. Fountain Calley, California: Worth Publishers ; Coast Learning Systems, 2009.
MLA (9th ed.) AtıfStraub, Richard O. Telecourse Student Guide to Accompany Child Development Stepping Stones. Third edition. Worth Publishers ; Coast Learning Systems, 2009.
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