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Photograph
Ernest W. Sprague at Poza Rica experimental maize fields
(CIMMYT, 1979)
Photograph
Haldore Hanson and Robert Glenn Anderson at maize fields
(CIMMYT, 1970)
Photograph
Board of trustees visiting Poza Rica experimental field
(CIMMYT, 1973-05)
Photograph
Trainees at fields, maize training activities at El Batan
(CIMMYT, 1974)