SHIPMAN, S. GENERAL CRITERIA FOR EVALUATING SOCIAL PROGRAMS.
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Dyfyniad Arddull Chicago
SHIPMAN, S. GENERAL CRITERIA FOR EVALUATING SOCIAL PROGRAMS.
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Dyfyniad MLA
SHIPMAN, S. GENERAL CRITERIA FOR EVALUATING SOCIAL PROGRAMS.
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Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.