APA (7th ed.) Citation

Sigurdsson, H., & Sparks, R. S. J. (1978). Rifting episode in north iceland in 1874–1875 and the eruptions of askja and sveinagja. Bulletin Volcanologique, 41(3), 149.

Chicago Style (17th ed.) Citation

Sigurdsson, H., and R. S. J. Sparks. "Rifting Episode in North Iceland in 1874–1875 and the Eruptions of Askja and Sveinagja." Bulletin Volcanologique 41, no. 3 (1978): 149.

MLA (9th ed.) Citation

Sigurdsson, H., and R. S. J. Sparks. "Rifting Episode in North Iceland in 1874–1875 and the Eruptions of Askja and Sveinagja." Bulletin Volcanologique, vol. 41, no. 3, 1978, p. 149.