Cita APA (7a ed.)

The institute of national planning, Elrayes, a., & Nosseir, a. (2010). Using pepa to model the unemployment problem. The institute of national planning.

Cita Chicago Style (17a ed.)

The institute of national planning, amani Elrayes, y ann Nosseir. Using Pepa to Model the Unemployment Problem. cairo: The institute of national planning, 2010.

Cita MLA (9a ed.)

The institute of national planning, et al. Using Pepa to Model the Unemployment Problem. The institute of national planning, 2010.