Soil Management Studies: A Three Year Rotation for Western Maryland : Frostburg Field, Garrett County, Volumes 283-299
A. G. McCall · Albert Lee Schrader · Ernest Neal Cory · Jacob Elry Metzger · Robert Andrew Jehle · Walter Naphtali Ezekiel · Charles Orval Appleman · Charles Edward Temple · Ho Liu · Pearl A. McConnell · Carl Marcus Conrad · F. W. Oldenburg
1926. jan. · University of Maryland, Agricultural Experiment Station