TY - BOOK AU - Schumacher, M. M. TI - ENHANCED OIL RECOVERY U1 - 622.3382 PY - 1978/// CY - Park Ridge, N. J. PB - Noyes Data Corp. KW - Secondary Recovery Of Oil -- Patents KW - Petroleum Engineering KW - Patents -- U. S N1 - Bibliography : P. 205-206; Energy Technology Review, No. 22 ER -