TY - BOOK AU - Frankel, O.H., ed. TI - Crop genetic resources today tomorrow T2 - International biological program SN - 0521205751 U1 - 631.523 21st ed. PY - 1975/// CY - London PB - Cambridge University Press KW - Crops KW - Hawkes KW - J.G., ed KW - Plant genetic resources ER -