Frederick R. Troeh Professor Emeritus

titleISBN-13
(ISBN-10)
year of publica-
tion
other author(s)
Soil and Water Conservation for Productivity and Environmental Protection978-O-13-O968O7-4
(O-13-O968O7-2)
2003J. Arthur Hobbs Emeritus · Roy L. Donahue

F.T. · Frederick R. Troeh · R. P. · R. T. · T.P

Frederick R. Trost