TY  - BOOK
AU  - Paul M. Harris
TI  - Potato crop : The scientific basic for improvement. Ed 2
SN  - 0-442-31453-1
U1  - 635.21 
PY  - 1992///
CY  - London
PB  - Chapman and Hall
N1  - Paul M. Harris: Potato crop : The scientific basic for improvement. Ed 2.  London.  Chapman and Hall, 1992. 0-442-31453-1--(635.21HAR)
ER  -