Cita APA (7th ed.)

CHAUVEL ,LEFEBURE. (1989). PETROCHEMICAL PROCESS. GULF PUB. CO.

Cita Chicago (17th ed.)

CHAUVEL ,LEFEBURE. PETROCHEMICAL PROCESS. U.S.A: GULF PUB. CO, 1989.

Cita MLA (9th ed.)

CHAUVEL ,LEFEBURE. PETROCHEMICAL PROCESS. GULF PUB. CO, 1989.