Bickerton, M. (1992). A Practitioner's Handbook of Requirements Engineering Methods. Oxford University Computing Laboratory.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBickerton, M. A Practitioner's Handbook of Requirements Engineering Methods. Oxford University Computing Laboratory, 1992.
एमएलए (9वां संस्करण) प्रशस्ति पत्रBickerton, M. A Practitioner's Handbook of Requirements Engineering Methods. Oxford University Computing Laboratory, 1992.
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