APA (7th ed.) Citation

Abaya, E. F. (1993). MMDF electronic mail. Philippine Engineering Journal.

Chicago Style (17th ed.) Citation

Abaya, Efren F. "MMDF Electronic Mail." Philippine Engineering Journal 1993.

MLA (9th ed.) Citation

Abaya, Efren F. "MMDF Electronic Mail." Philippine Engineering Journal, 1993.

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