APA (7th ed.) Citation

Walker, G. W. (1913). Modern seismology. Longmans, Green and co..

Chicago Style (17th ed.) Citation

Walker, George Walker. Modern Seismology. London, New York [etc.]: Longmans, Green and co., 1913.

MLA (9th ed.) Citation

Walker, George Walker. Modern Seismology. Longmans, Green and co., 1913.

Warning: These citations may not always be 100% accurate.