TY  - BOOK
AU  - Walker, John N.
AU  - Duncan, George A.
TI  - An automatic sidewall system for greenhouse environmental control
PY  - 0000///(198?)
CY  - (Lexington)
PB  - University of Kentucky. College of Agriculture Cooperative Extension Service
KW  - Invernaderos
N1  - Fotocopia
ER  -