Cita APA (7th ed.)

Ong, J. L. (1996). Precise frequency generation with digital modulation using direct digital synthesis. Philippine Engineering Journal.

Cita Chicago (17th ed.)

Ong, Johann L. "Precise Frequency Generation with Digital Modulation Using Direct Digital Synthesis." Philippine Engineering Journal 1996.

Cita MLA (9th ed.)

Ong, Johann L. "Precise Frequency Generation with Digital Modulation Using Direct Digital Synthesis." Philippine Engineering Journal, 1996.