by Franklin B. Lewis, Michael L. McManus, Noel F. Schneeberger

1979

by Albert Thomas Schuler, Alex L. Shigo, Charles Hrach Wolf, Clayton M. Carl, David L. Sonderman, Donald E. Hilt, E. Paul Craft, Everette D. Rast, Franklin B. Lewis, H. Clay Smith, Hugh W. Reynolds, Jeffrey L. Wartluft, John C. Bjorkbom, John E. Baumgras, Keith F. Jensen, L. R. Auchmoody, Leland F. Hanks, Neil K. Huyler, Peter W. Garrett, Philip A. Araman, R. E. Leonard, Robert M. Frank, Roger E. McCay, Ronald C. Wilkinson, Silas Little, Thomas A. More, Wilbur F. LaPage, Barton M. Blum, Charles J. Gatchell, David A. Gansner, Gerald Leon Cole, Gilbert P. Dempsey, Gregory J. Buhyoff, Herbert E. Echelberger, James G. Schroeder, John J. Mohr, John Robert Donnelly, Lawrence D. Garrett, Martin E. Dale, Michael L. McManus, Robert L. Brisbin, Walter Basil Wallin, Noel F. Schneeberger, Boyd W. Post, Donald E. Dorn, John J. Padalino, Michael Schnitzer, Paul S. DeBald

1978