Παραπομπή APA

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

Παραπομπή Chicago Style

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

Παραπομπή MLA

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