APA (7th ed.) Citation

Chu, G. (1988). Aviators' reference map of the United States. Airmaps.

Chicago Style (17th ed.) Citation

Chu, Gregory. Aviators' Reference Map of the United States. [Minneapolis]: Airmaps, 1988.

MLA (9th ed.) Citation

Chu, Gregory. Aviators' Reference Map of the United States. Airmaps, 1988.

Warning: These citations may not always be 100% accurate.