TY  - BOOK
AU  - J.H.W. Holden
AU  -  J.T. Williams, 
TI  - Crop genetic resources : Conservation and evaluation
U1  - 581.15 
CY  - London
PB  - George allen and Unwin
N1  - J.H.W. Holden & J.T. Williams: Crop genetic resources : Conservation and evaluation.  London.  George allen and Unwin,--(581.15HOL)
ER  -