TY  - BOOK
AU  - Keveren, R.I.
TI  - Plastics in horticultural structures
U1  - 631.34 K53P 
PY  - 1973///
CY  - Shrewsbury, Gt. Brit.
PB  - Rubber and Plastic Research Association
KW  - PLASTICS
KW  - GREENHOUSES
KW  - HORTICULTURE
ER  -