Main
>
PETROLEUM
>
Subterranean
>
Formation
>
Permeability
>
Water Permeability.
>
Redn. Fluid Compn. Contg.
>
Tetramethylammonium Salts. etc &
>
Poly(Acrylamide). etc.
Poly(Acrylamide). etc.'s products
USA. H