by Runge, Ford C | Pardey, Philip G | Rosegrant, Mark W | Senauer, Benjamin.
by Uhl, Joseph N | Kohls, Richard L.
by Wader, L. K | Murthy, C.
by Mukhopadhyay, Subhas Chandra.
by Ingco, Merlinda D | Nash, John D.
by Singh, H. S.
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