Παραπομπή σε μορφή APA (7η εκδ.)

Development Academy of the Philippines. (1978). How to develop project feasibility studies. Published for the Development Academy of the Philippines by Sinag-tala Publishers, Inc.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Development Academy of the Philippines. How to Develop Project Feasibility Studies. Manila: Published for the Development Academy of the Philippines by Sinag-tala Publishers, Inc, 1978.

Παραπομπή σε μορφή MLA (9th εκδ.)

Development Academy of the Philippines. How to Develop Project Feasibility Studies. Published for the Development Academy of the Philippines by Sinag-tala Publishers, Inc, 1978.