TY  - BOOK
AU  - ZABEL-TITZ, Chr. Von
TI  - Utilization of solar and geothermal engery for heating greenhouses : report and proceedings
U1  - 631.34 J52U 
PY  - 1989///
PB  - Rome
KW  - GREENHOUSES -- HEATING AND VENTILATION
KW  - SOLAR GREENHOUSES
ER  -