Cita APA (7a ed.)
Youssef, L. A. (1975). Systems Analysis and Design. Reston Publishing Company.
Cita Chicago Style (17a ed.)
Youssef, Leon A. Systems Analysis and Design. Virginia: Reston Publishing Company, 1975.
Cita MLA (9a ed.)
Youssef, Leon A. Systems Analysis and Design. Reston Publishing Company, 1975.
Precaución: Estas citas no son 100% exactas.