1. Occupational exposure to silicate fibres and PAHs during sugar-cane harvesting;Boeniger;Ann. Occup. Hyg.,1988
2. Proposed revisions to “a procedure relating to the determination of agricultural/forestry waste emission offset credit”;California Air Resources Board;Staff Rep. CARB,1989
3. Emission inventory 1987;California Air Resources Board,1990
4. California field crop statistics;California Agricultural Statistics Service,1988
5. California fruit and nut statistics;California Agricultural Statistics Service,1988