APA

Whisman M., Goetzinger J. & Cotton F. (1974). Waste lubricating oil research. An investigation of several re-refining methods. Bartlesville, OK: Bartlesville Energy Research Center. Bureau of Mines. Report nr 7884.

Chicago

Whisman ML, Goetzinger JW and Cotton FO. 1974. Waste lubricating oil research. An investigation of several re-refining methods. Bartlesville, OK: Bartlesville Energy Research Center. Bureau of Mines. Report nr 7884.

Harvard

Whisman M., Goetzinger J. and Cotton F. (1974). Waste lubricating oil research. An investigation of several re-refining methods. Bartlesville, OK: Bartlesville Energy Research Center. Bureau of Mines. Report nr 7884.

MLA

Whisman ML, Goetzinger JW and Cotton FO. Waste lubricating oil research. An investigation of several re-refining methods. Bartlesville, OK: Bartlesville Energy Research Center. Bureau of Mines. Report nr 7884. 1974.