by Franklin W. Martin, Carl W. Campbell, Ruth M. RubertéU.S. Dept. of Agriculture, Agricultural Research Service : Supt. of Docs., U.S. G.P.O. [distributor]1987
by Robert E. Hardenburg, Alley E. Watada, Chien Yi WangU.S. Dept. of Agriculture, Agricultural Research Service : [Supt. of Docs., U.S. G.P.O., distributor]1986
edited by George C. Steyskal, William L. Murphy, Edna M. HooverU.S. Dept. of Agriculture, Agricultural Research Service : [Additional copies can be purchased from U.S. G.P.O.1986