APA (7th ed.) Citation

Abis, L. V. (1980). Energy generation and utilization. Philippine Engineering Journal.

Chicago Style (17th ed.) Citation

Abis, Leopoldo V. "Energy Generation and Utilization." Philippine Engineering Journal 1980.

MLA (9th ed.) Citation

Abis, Leopoldo V. "Energy Generation and Utilization." Philippine Engineering Journal, 1980.

Warning: These citations may not always be 100% accurate.