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…showed last 75 words of 687 total…found. 5. The Science Newsletter This magazine gave me useful information on how the oil dredging and pumping process worked. 6. The World Book Encyclopedia This encyclopedia proved useful for detailed explanations of how the oil process was today. I could then compare it to accounts of old oil-processing methods. 7. www.altavista.com This search engine made the pains of my quest for information a little easier by finding the helpful sites I used from the Internet.