APA Citation

Gibb, H. R. (1972). The bulletin supplement, 1972. Philadelphia, Pa.: National Railway Historical Society.

Chicago Style Citation

Gibb, Hugh R. The Bulletin Supplement, 1972. Philadelphia, Pa.: National Railway Historical Society, 1972.

MLA Citation

Gibb, Hugh R. The Bulletin Supplement, 1972. Philadelphia, Pa.: National Railway Historical Society, 1972.

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