Spangler, Merlin Grant. creator Handy, Spangler and. Handy, Richard L., Ph.D. text S.l.] Harpercollins College Div 1982 4 Sub ed. monographic 819 p. ; Soil mechanics 0700225331 (hardcover) 9780700225330 (hardcover) http://www.amazon.com/exec/obidos/ASIN/0700225331/chopaconline-20 http://www.amazon.com/exec/obidos/ASIN/0700225331/chopaconline-20