"Conkin, P. K. (1970). Puritans and pragmatists: Eight eminent american thinkers. Lyall book depot.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र"Conkin, Paul K". Puritans and Pragmatists: Eight Eminent American Thinkers. Lyall book depot, 1970.
एमएलए (9वां संस्करण) प्रशस्ति पत्र"Conkin, Paul K". Puritans and Pragmatists: Eight Eminent American Thinkers. Lyall book depot, 1970.
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