APA (7th ed.) Citation

Richfield, P. (1999). Hartzell to develop Ae270 prop system. Business & Commercial Aviation, 85(1), 26.

Chicago Style (17th ed.) Citation

Richfield, Paul. "Hartzell to Develop Ae270 Prop System." Business & Commercial Aviation 85, no. 1 (1999): 26.

MLA (9th ed.) Citation

Richfield, Paul. "Hartzell to Develop Ae270 Prop System." Business & Commercial Aviation, vol. 85, no. 1, 1999, p. 26.