By Wilson JA   Heath ACG   Quilter S   McKay C   Litchfield D   Nottingham R   in New Zealand Veterinary Journal

ISSN:1176-0710|45|1|8-10

Taylor & Francis Ltd‎(1997)‎

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By Gonzalez A.R.   Doan Holbein M.F.   Quilter S.   in Contemporary Educational Psychology

ISSN:0361-476X|27|3|450-470

Academic Press‎(2002)‎

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