Polhamus, Loren G
Rubber : botany, production and utilization - London, Leonard hill books limited 1962 - 449 - World crops books .
Rubber - bearing plants/ natural rubber/ synthetic rubber/ valcanization
633.895 2 POL
100
Rubber : botany, production and utilization - London, Leonard hill books limited 1962 - 449 - World crops books .
Rubber - bearing plants/ natural rubber/ synthetic rubber/ valcanization
633.895 2 POL
100