APA (7th ed.) Citation

Abaya, E. F. (1996). Coding telephone number to avoid “wrong numbers”. Philippine Engineering Journal.

Chicago Style (17th ed.) Citation

Abaya, Efren F. "Coding Telephone Number to Avoid “wrong Numbers”." Philippine Engineering Journal 1996.

MLA (9th ed.) Citation

Abaya, Efren F. "Coding Telephone Number to Avoid “wrong Numbers”." Philippine Engineering Journal, 1996.

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