APA (7th ed.) Citation

Williams, H., & Meyer-Abich, H. (1955). Volcanism in the southern part of El Salvador: With particular reference to the collapse basins of Lakes Coatepeque and Ilopango. University of California Press.

Chicago Style (17th ed.) Citation

Williams, Howel, and Helmut Meyer-Abich. Volcanism in the Southern Part of El Salvador: With Particular Reference to the Collapse Basins of Lakes Coatepeque and Ilopango. Berkeley: University of California Press, 1955.

MLA (9th ed.) Citation

Williams, Howel, and Helmut Meyer-Abich. Volcanism in the Southern Part of El Salvador: With Particular Reference to the Collapse Basins of Lakes Coatepeque and Ilopango. University of California Press, 1955.