Παραπομπή σε μορφή APA (7η εκδ.)

Velasco, G. Z. (1979). Development, energy, and national survival: Selected speeches of Minister Geronimo Z. Velasco. Ministry of Energy.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Velasco, Geronimo Z. Development, Energy, and National Survival: Selected Speeches of Minister Geronimo Z. Velasco. Makati: Ministry of Energy, 1979.

Παραπομπή σε μορφή MLA (9th εκδ.)

Velasco, Geronimo Z. Development, Energy, and National Survival: Selected Speeches of Minister Geronimo Z. Velasco. Ministry of Energy, 1979.