Paul R. Miller and Hazel L. PollardProduction and distribution by the American Phytopathological Society for the United States Agency for International Development in cooperation with the Agricultural Research Service, United States Dept. of Agriculturec1977
by Paul R. Miller and Hazel L. PollardProduction and distribution by the American Phytopathological Society for the United States Agency for International Development in cooperation with the Agricultural Research Service, United States Dept. of Agriculturec1976
by Paul R. Miller and Hazel L. PollardProduction and distribution by the American Phytopathological Society for the United States Agency for International Development in cooperation with the Agricultural Research Service, United States Dept. of Agriculturec1976