APA (7th ed.) Citation

Houston (Tex.). City Planning Department. (1977). Houston downtown tunnel system. The Department.

Chicago Style (17th ed.) Citation

Houston (Tex.). City Planning Department. Houston Downtown Tunnel System. Houston: The Department, 1977.

MLA (9th ed.) Citation

Houston (Tex.). City Planning Department. Houston Downtown Tunnel System. The Department, 1977.

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