Παραπομπή σε μορφή APA (7η εκδ.)

United States. Geological Survey. (1966). Proposed development program for the Philippine Commission on Volcanology including summary reports on the 1965 eruptions of Taal Volcano. s.n.].

Παραπομπή σε μορφή Chicago (17η εκδ.)

United States. Geological Survey. Proposed Development Program for the Philippine Commission on Volcanology Including Summary Reports on the 1965 Eruptions of Taal Volcano. [Washington: s.n.], 1966.

Παραπομπή σε μορφή MLA (9th εκδ.)

United States. Geological Survey. Proposed Development Program for the Philippine Commission on Volcanology Including Summary Reports on the 1965 Eruptions of Taal Volcano. s.n.], 1966.