Pan American Airways Corporation. (1938). South America: South American scheduled air routes are shown on this map. [Pan American Airways].
Chicago Style (17th ed.) CitationPan American Airways Corporation. South America: South American Scheduled Air Routes Are Shown on This Map. [United States]: [Pan American Airways], 1938.
MLA (8th ed.) CitationPan American Airways Corporation. South America: South American Scheduled Air Routes Are Shown on This Map. [Pan American Airways], 1938.
Warning: These citations may not always be 100% accurate.