Gaya APA

Wahlstrom, , E, E. (1973). DEVELOPMENTS IN GEOTECHNICAL ENGINEERING 3: Tunneling in Rock . The Netherlands: Elsevier Scientific Pub.Co..

Gaya MLA

Wahlstrom, , Ernest, E.. "DEVELOPMENTS IN GEOTECHNICAL ENGINEERING 3: Tunneling in Rock". The Netherlands: Elsevier Scientific Pub.Co., 1973. Text.