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Robert C. Szaro, Burchard H. Heede, Carleton B. Edminster, Charles F. Leaf, Daniel L. Noble, David F. Van Haverbeke, David G. Sabo, David L. Sturges, Dennis M. Donnelly, Dwight R. Cable, Earle F. Layser, Gerald J. Gottfried, J. M. Schmid, John G. Goodwin, K. L. Dawson, Kay Franzreb, L. J. Heidmann, Michael A. Fosberg, Pat O. Currie, R. A. Schmidt, Ralph Edmund Campbell, Robert R. Alexander, Rocky Mountain Forest and Range Experiment Station (Fort Collins, Colo.), Stanley L. Ponce, Stephen S. Sackett, Theodore Edmund Lang, Thomas E. Hinds, Thomas John Mills, W. L. Minckley, William H. Moir, Eugene M. Wengert · Yayınevi bilinmiyor
910 sayfa · 1977
Arid regions plants
Charles Morton Strahan, Gustave Speth, John P.] [Campbell, Robert Jordan Redding, W. L. Jones · Yayınevi bilinmiyor
604 sayfa · 1888
Agricultural experiment stations
Alden S. Ingraham, August Levi Nelson, C. Wesley Roath, Emma J. Thiessen, Frank E. Hepner, Fred S. Hultz, Glen Hartman, Harold Sibley Willard, James Stewart Wiant, Mack O. North, John Alexander Gorman, W. L. Quayle, Sherman Shaw Wheeler · Yayınevi bilinmiyor
606 sayfa · 1935
Agriculture