APA (7th ed.) Citation

Graves, B. (2012). Helicopter Warning System Avoids Obstacles and Mistakes. San Diego Business Journal, 33(32), 4.

Chicago Style (17th ed.) Citation

Graves, Brad. "Helicopter Warning System Avoids Obstacles and Mistakes." San Diego Business Journal 33, no. 32 (2012): 4.

MLA (9th ed.) Citation

Graves, Brad. "Helicopter Warning System Avoids Obstacles and Mistakes." San Diego Business Journal, vol. 33, no. 32, 2012, p. 4.