APA استشهاد

Lee, B., & Lee, B. (1979). Introducing systems analysis and design v.2. Galgotia Book source.

استشهاد بنمط شيكاغو

Lee, Barry.ed, و Barry Lee. Introducing Systems Analysis and Design V.2. New Delhi.: Galgotia Book source, 1979.

MLA استشهاد

Lee, Barry.ed, و Barry Lee. Introducing Systems Analysis and Design V.2. Galgotia Book source, 1979.