APA aipamena

(1978). How to develop project feasibility studies. Philipin: Sinag-Tala.

Chicago Style aipamena

How to Develop Project Feasibility Studies. Philipin: Sinag-Tala, 1978.

MLA aipamena

How to Develop Project Feasibility Studies. Philipin: Sinag-Tala, 1978.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.