APA

Knop R. C., . (1969). Evaluation of a radiometric method of determining engine oil economy. New York: Society of Automotive Engineers.

Chicago

Knop Roger C, . 1969. Evaluation of a radiometric method of determining engine oil economy. New York: Society of Automotive Engineers.

Harvard

Knop R. C., . (1969). Evaluation of a radiometric method of determining engine oil economy. New York: Society of Automotive Engineers.

MLA

Knop Roger C, . Evaluation of a radiometric method of determining engine oil economy. New York: Society of Automotive Engineers. 1969.