By Portwood Sharon   in The Journal of Primary Prevention

ISSN:0278-095X|32|3-4|147-160

Springer Publishing Company ‎(2011)‎

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By Boyd A.   Einbinder Susan   Rauktis Mary   Portwood Sharon   in Child and Youth Care Forum

ISSN:1053-1890|36|1|43-58

Springer Publishing Company ‎(2007)‎

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By Portwood Sharon   Ayers Penny   Kinnison Kelly   Waris Robert   Wise Daniel   in The Journal of Primary Prevention

ISSN:0278-095X|26|2|129-188

Springer Publishing Company ‎(2005)‎

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