APA (7th ed.) Citation

(1930). Air traffic rules (extract from Air commerce regulations). GPO.

Chicago Style (17th ed.) Citation

Air Traffic Rules (extract from Air Commerce Regulations). [Washington]: GPO, 1930.

MLA (9th ed.) Citation

Air Traffic Rules (extract from Air Commerce Regulations). GPO, 1930.

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