APA (7th ed.) Citation

George Helffrich, J. W. (2013). The Seismic Analysis Code (1.). Cambridge University Press.

Chicago Style (17th ed.) Citation

George Helffrich, James Wookey. The Seismic Analysis Code. 1. Cambridge University Press, 2013.

MLA (8th ed.) Citation

George Helffrich, James Wookey. The Seismic Analysis Code. 1. Cambridge University Press, 2013.

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