Armstrong-W., A. (1986). Urban Transit System: :Guidelines For Examining Options (1. Edisyon.). IBRD.
Chicago Style (17th ed.) CitationArmstrong-W., Alan. Urban Transit System: :Guidelines For Examining Options. 1. Edisyon. Washington: IBRD, 1986.
MLA (9th ed.) CitationArmstrong-W., Alan. Urban Transit System: :Guidelines For Examining Options. 1. Edisyon. IBRD, 1986.
Warning: These citations may not always be 100% accurate.