Reyes, V. A. R & D Imperatives in Manufacturing. Philippine Engineering Journal.
Cita Chicago (17th ed.)Reyes, Valentin A. "R & D Imperatives in Manufacturing." Philippine Engineering Journal .
Cita MLA (9th ed.)Reyes, Valentin A. "R & D Imperatives in Manufacturing." Philippine Engineering Journal, .
Atenció: Aquestes cites poden no estar 100% correctes.