1. Alteration of crude oil by waters and bacteria—evidence from geochemical and isotope studies;Bailey;Bull. Amer. Assoc. Petrol. Geol.,1973
2. Natural history of the Gulf Coast crude oil;Barton,1934
3. Transformation of petroleum in nature;Barton;J. Inst. Petrol.,1934
4. Petroleum Microbiology;Beerstecher,1954
5. Compound types in gasoline by mass spectrometer analyses;Brown;Anal. Chem.,1951