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.].
Cita Chicago (17th ed.)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.
Cita MLA (9th ed.)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.
Atenció: Aquestes cites poden no estar 100% correctes.