APA (7th ed.) Citation

Van Impe, W. F. (1989). Soil improvement techniques and their evolution. Balkema.

Chicago Style (17th ed.) Citation

Van Impe, W. F. Soil Improvement Techniques and Their Evolution. Rotterdam, Netherlands ; Brookfield, VT: Balkema, 1989.

MLA (9th ed.) Citation

Van Impe, W. F. Soil Improvement Techniques and Their Evolution. Balkema, 1989.