- Author: Lesley J. Rogers Gisela Kaplan
- Language: English
- Year: 2002
- Author: Robert Kaplan Ellen Kaplan
- Language: English
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- Year: 2002
- Author: Richard Baldauf Robert Kaplan
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- Year: 2007
- Author: Daniel M. Kaplan Christopher G. White
- Language: English
- Year: 2003
- Author: Jeffrey S. Kaplan Sandra Luna McCune PhD
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- Year: 2005
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- Language: English
- Year: 2007
Genders
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- Author: David Glover Cora Kaplan
- Language: English
- Year: 2009
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- Language: English
- Year: 2003
- Author: Kaplan A (ed.) Greaves M. W.(ed.)
- Language: English
- Year: 2009