Cita APA (7th ed.)

Abis, L. V. (1982). Design of heat exchangers. Philippine Engineering Journal.

Cita Chicago (17th ed.)

Abis, Leopoldo V. "Design of Heat Exchangers." Philippine Engineering Journal 1982.

Cita MLA (9th ed.)

Abis, Leopoldo V. "Design of Heat Exchangers." Philippine Engineering Journal, 1982.