APA (7 वां संस्करण) प्रशस्ति पत्र

Lloyd, P. E., & Dicken, P. (1972). Location in space: A theoretical approach to economic geography. Harper and Row Pubs.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Lloyd, Peter E., और Peter;Lloyd Dicken. Location in Space: A Theoretical Approach to Economic Geography. Harper and Row Pubs, 1972.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Lloyd, Peter E., और Peter;Lloyd Dicken. Location in Space: A Theoretical Approach to Economic Geography. Harper and Row Pubs, 1972.

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