F., W., H., Fang, H.(1975).Foundation engineering handbook / editor, Hans F. Winterkorn, Hsai-Yang Fang .New York:Van Nostrand Reinhold Company.
Gaya MLA
Winterkorn, Hans, F.., Hsai-Yang, Fang."Foundation engineering handbook / editor, Hans F. Winterkorn, Hsai-Yang Fang".New York:Van Nostrand Reinhold Company,1975.Textbook.