Statham, R., & Whitehead, P. (1992). Managing the probation service: Issues for the 1990s. Longman.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रStatham, Roger, और Philip Whitehead. Managing the Probation Service: Issues for the 1990s. Harlow, Essex, U.K.: Longman, 1992.
एमएलए (8वां संस्करण) प्रशस्ति पत्रStatham, Roger, और Philip Whitehead. Managing the Probation Service: Issues for the 1990s. Longman, 1992.
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