APA (7th ed.) Citation

HARDER, R. O. (2021). OLD NUMBER ONE. Aviation History, 32(1), 10.

Chicago Style (17th ed.) Citation

HARDER, ROBERT O. "OLD NUMBER ONE." Aviation History 32, no. 1 (2021): 10.

MLA (9th ed.) Citation

HARDER, ROBERT O. "OLD NUMBER ONE." Aviation History, vol. 32, no. 1, 2021, p. 10.