APA (7e ed.) Bronvermelding

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

Chicago (17e ed.) Bronvermelding

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

MLA (9e ed.) Bronvermelding

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