Cita APA (7th ed.)

Hanson, R. D. (1969). The Venezuela earthquake, July 29, 1967: By R. D. Hanson and Henry J. Degenkolb. American Iron and Steel Institute.

Cita Chicago (17th ed.)

Hanson, Robert D. The Venezuela Earthquake, July 29, 1967: By R. D. Hanson and Henry J. Degenkolb. New York: American Iron and Steel Institute, 1969.

Cita MLA (9th ed.)

Hanson, Robert D. The Venezuela Earthquake, July 29, 1967: By R. D. Hanson and Henry J. Degenkolb. American Iron and Steel Institute, 1969.