TY  - GEN
AU  - Douglas, James Sholto
TI  - Advanced guide to Hydroponics ( Soilless Cultivation )
SN  - 07207 0 8303
U1  - 631.585 DOU 
CY  - London, Pelham Books
KW  - Hydroponics/ Soilesss cultivation / crop physiology
ER  -