Gaya APA

Peck, R, B., Hanson, W, E. (1974). Foundation engineering. (1974). : New York : John Wiley & Sons, Inc.,.

Gaya MLA

Peck, Ralph, B.., Hanson, Walter, E.. "Foundation engineering.". 1974 : New York : John Wiley & Sons, Inc.,, 1974. Text.