TY  - BOOK
AU  - Langenheim,Jean H
AU  - Thimann,Kenneth V.(Kenneth Vivian),1904-
TI  - Botany: plant biology and its relation to human affairs 
PY  - 1982///
CY  - New York
PB  - Wiley
KW  - Botany
KW  - Botany, Economic
ER  -