Gaya APA

Day, R, W. (2012). Geotechnical Eartquake Engineering Handbook: Wiht the 2012 international building code (Kedua (2)). New York: McGraw-Hill Companies. Inc.

Gaya MLA

Day, Robert, W.. "Geotechnical Eartquake Engineering Handbook: Wiht the 2012 international building code". Kedua (2) New York: McGraw-Hill Companies. Inc, 2012. Text.