Palmer, Robert G. Introductory soil science : laboratory manual / Robert G. Palmer, Frederick R. Troeh. - 3rd ed. - New York : Oxford University Press, 1995. - 120 p. : ill., map ; 30 cm. ISBN: 0195094360 Subjects--Topical Terms: Soil science--Laboratory manuals. LC Class. No.: S591.7 / P34 1995