By Cornell University.
, -Existencias: 1915 no. 363; 365; 1931 no. 519; 1939 no. 714; 1960 no. 954 -BPH: Bull. Cornell Univ. Agric. Exp. Sta.

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By Cornell University.
, -Título BPH: Cornell Extens. Bull. New York State Coll. Agric. -Existencias: 1966 no. 1154, 1160, 1162; 1967 no. 1180, 1181

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By University of New York.
, -Existencias: 1936-1939 no. 196, 208, 216, 218; 1952 no. 311; 1955-1959 no. 335, 338, 351-352, 366; 1962 no. 379

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