Earthquakes :
an introduction to seismic geology /
by William Herbert Hobbs.

APA Citation

Hobbs, W. Herbert. (1907). Earthquakes: an introduction to seismic geology. New York: D. Appleton and Co..

MLA Citation

Hobbs, William Herbert, 1864-1952. Earthquakes: an Introduction to Seismic Geology. New York: D. Appleton and Co., 1907.

Warning: These citations may not always be complete (especially for serials).