TY  - BOOK
AU  - Hilyer,Charlotte Isabel
TI  - Hydroponics: food without soil. A journal of experiments 1938 to 1940,
AV  - SB139 .H5
PY  - 1940///]
CY  - Harmondsworth, Middlesex, Eng., New York
PB  - Penguin books limited
KW  - Hydroponics
ER  -