Gaya APA

Smalheer, C, , , , V., Smith, R, K. (1967). Lubricant additives. (1967). : Ohio : The Lezius-Hiles Co.,.

Gaya MLA

Smalheer, C, , , , V., Smith, R., Kennedy. "Lubricant additives.". 1967 : Ohio : The Lezius-Hiles Co.,, 1967. Text.