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61
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62
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63
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64by Leighton, Morris M. (Morris Morgan), 1887-1971Subjects: “...Petroleum Illinois....”
Published 1944
Book -
65
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66
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67
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68
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69Published 1953Subjects: “...Petroleum Dictionaries....”
Book -
70
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71
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72
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73Published 1917Subjects: “...Petroleum Geology....”
Journal -
74
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75
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76Published 1981Subjects: “...Petroleum Refining....”
Book -
77
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78
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79
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80