APA način citiranja (7. izdanje)

Yap, J. (2009). Preliminary results of the survey on PWDs conducted in selected Metro Manila cities. Philippine Institute for Development Studies.

Čikaški stil citiranja (17. izdanje)

Yap, Josef. Preliminary Results of the Survey on PWDs Conducted in Selected Metro Manila Cities. Makati City: Philippine Institute for Development Studies, 2009.

MLA način citiranja (9. izdanje)

Yap, Josef. Preliminary Results of the Survey on PWDs Conducted in Selected Metro Manila Cities. Philippine Institute for Development Studies, 2009.