Cita APA (7th ed.)

Tazieff, H. (1972). Niragongo volcanic activity. Smithsonian Institution, Center for Short-Lived Phenomena.

Cita Chicago (17th ed.)

Tazieff, Haroun. Niragongo Volcanic Activity. [Washington, D.C.]: Smithsonian Institution, Center for Short-Lived Phenomena, 1972.

Cita MLA (8th ed.)

Tazieff, Haroun. Niragongo Volcanic Activity. Smithsonian Institution, Center for Short-Lived Phenomena, 1972.