TY - BOOK AU - P.M. Harris TI - Potato crop : The scientific basic for improvement SN - 0-412-12830-6 U1 - 635.21 PY - 1978/// CY - London PB - Chapman and Hall N1 - P.M. Harris: Potato crop : The scientific basic for improvement. London. Chapman and Hall, 1978. 0-412-12830-6--(635.21HAR) ER -