Παραπομπή APA

Lee, . . .. (1999). Introducing system analysis and design. Galgotia Booksource.

Παραπομπή Chicago Style

Lee,. Introducing System Analysis and Design. New Delhi: Galgotia Booksource, 1999.

Παραπομπή MLA

Lee,. Introducing System Analysis and Design. Galgotia Booksource, 1999.