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by United States Congress; United States House of Representatives; Committee on Agriculture
by Hou, Ching T.; Shaw, Jei-fu
by Molnar, Joseph J.
by Cohen, Joel I.
by Gabrielle J. Persley; L. Reginald MacIntyre
by Grant E. Isaac
by R. E. Evenson; V. Santaniello; D. Zilberman
by Arora; Dilip K.
by F. H. Erbisch; K. M. Maredia