Gaya APA

Popovich, M., Hering, C. (1959). Fuels and lubricants. (1959). : New York : John Wiley & Sons, Inc.,.

Gaya MLA

Popovich, M.., Hering, Carl. "Fuels and lubricants.". 1959 : New York : John Wiley & Sons, Inc.,, 1959. Text.