1979 Chemical Constituents of Walnut Hulls and Kernels Zelleke, Asfaw, John M. Labavitch, George C. Martin, Chic Nishijima. 1979.
1980 Developmental changes in Some Constituents of Walnut Fruits Zelleke, Asfaw, John M. Labavitch, George C. Martin, Chic Nishijima, Carl Greve. 1980.
