APA (7th ed.) Citation

Quiwa, E. P. (1982). LPL: A problem oriented language for linear programming. Philippine Engineering Journal.

Chicago Style (17th ed.) Citation

Quiwa, Evangel P. "LPL: A Problem Oriented Language for Linear Programming." Philippine Engineering Journal 1982.

MLA (9th ed.) Citation

Quiwa, Evangel P. "LPL: A Problem Oriented Language for Linear Programming." Philippine Engineering Journal, 1982.