APA-Zitierstil (7. Ausg.)

Williams, H. (1941). Calderas and their origin. Univ. of California Press.

Chicago-Zitierstil (17. Ausg.)

Williams, Howel. Calderas and Their Origin. Berkeley [u.a.]: Univ. of California Press, 1941.

MLA-Zitierstil (9. Ausg.)

Williams, Howel. Calderas and Their Origin. Univ. of California Press, 1941.