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Traffic control--truck and airplane trffic.

APA Citation

Wilson, G. Lloyd (George Lloyd). Traffic control--truck and airplane trffic. Scranton, Pa.: International textbook company 1932.

Wilson, G. Lloyd (George Lloyd), 1896-1956. Traffic Control--truck And Airplane Trffic. Scranton, Pa.: International textbook company 1932,

Warning: These citations may not always be complete (especially for serials).