APA

Wahls H. E., American Association of State Highway and Transportation Officials, United States & National Research Council (U.S.). (1983). Shallow foundations for highway structures. Washington, D.C: Transportation Research Board, National Research Council.

Chicago

Wahls Harvey E, American Association of State Highway and Transportation Officials, United States and National Research Council (U.S.). 1983. Shallow foundations for highway structures. Washington, D.C: Transportation Research Board, National Research Council.

Harvard

Wahls H. E., American Association of State Highway and Transportation Officials, United States and National Research Council (U.S.). (1983). Shallow foundations for highway structures. Washington, D.C: Transportation Research Board, National Research Council.

MLA

Wahls Harvey E, American Association of State Highway and Transportation Officials, United States and National Research Council (U.S.). Shallow foundations for highway structures. Washington, D.C: Transportation Research Board, National Research Council. 1983.