APA (7th ed.) Citation

Chicago Transit Authority. (2000). Downtown transit sightseeing guide (Summer 2000.). CTA Communications & Marketing.

Chicago Style (17th ed.) Citation

Chicago Transit Authority. Downtown Transit Sightseeing Guide. Summer 2000. [Chicago]: CTA Communications & Marketing, 2000.

MLA (8th ed.) Citation

Chicago Transit Authority. Downtown Transit Sightseeing Guide. Summer 2000. CTA Communications & Marketing, 2000.

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