Journal of Soil and Water Conservation. v.46, 1991
Schnepf, Max, ed.
Journal of Soil and Water Conservation. v.46, 1991 edited by Max Schnepf - Lowa Soil Conservation Society of America 1991 - v.46, 468 p.; 28cm.
00224561
Journal of Soil and Water Conservation. v.46, 1991 edited by Max Schnepf - Lowa Soil Conservation Society of America 1991 - v.46, 468 p.; 28cm.
00224561