Judson, H. F. (1980). The search for solutions. New York: Holt, Rinehart, and Winston.
शिकागो स्टाइल उद्धरणJudson, Horace Freeland. The Search for Solutions. New York: Holt, Rinehart, and Winston, 1980.
एमएलए उद्धरणJudson, Horace Freeland. The Search for Solutions. New York: Holt, Rinehart, and Winston, 1980.
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