Hill, T. W., Quinn, C. P., & Wood, B. D. (1971). Contract administration guide for school adminsitrators. Dartnell Corp.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHill, Thomas W., Cornelius P. Quinn, और Bruce D. Wood. Contract Administration Guide for School Adminsitrators. Chicago: Dartnell Corp, 1971.
एमएलए (9वां संस्करण) प्रशस्ति पत्रHill, Thomas W., et al. Contract Administration Guide for School Adminsitrators. Dartnell Corp, 1971.
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