Gaya APA

Sowers, G, F. (179). Introductory Soil Mechanics And Foundations : Geotechnical Engineering (4). London: Collier Macmilln Int.

Gaya MLA

Sowers, George, F.. "Introductory Soil Mechanics And Foundations : Geotechnical Engineering". 4 London: Collier Macmilln Int, 179. Text.