Kallman, E. A., Reinharth, L., & Shapiro, H. J. (1981). The practice of planning: Strategic, administrative, and operational. Van Nostrand Reinhold.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रKallman, Ernest A., Leon Reinharth, और H. Jack Shapiro. The Practice of Planning: Strategic, Administrative, and Operational. New York: Van Nostrand Reinhold, 1981.
एमएलए (9वां संस्करण) प्रशस्ति पत्रKallman, Ernest A., et al. The Practice of Planning: Strategic, Administrative, and Operational. Van Nostrand Reinhold, 1981.
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