Practical operating procedures for progressive rehabilitation of sand and gravel sites /
Johnson, Craig W. (Craig William), 1941-
National Sand and Gravel Association.
University of Illinois (Urbana-Champaign campus). Dept. of Landscape Architecture.
Urbana :University of Illinois,c1966.
"Project no. 2, 1964-1965, University of Illinois [and] National Sand and Gravel Association"--Cover.
"This research project of the University of Illinois was sponsored by the National Sand & Gravel Association".
Reclamation of land
Sand and gravel industry
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