APA (7th ed.) Citation

Queen City Philatelic Society & Eastern Stamp Exchange. The Rocky Mountain stamp. Rocky Mountain Stamp Pub. Co.

Chicago Style (17th ed.) Citation

Queen City Philatelic Society and Eastern Stamp Exchange. The Rocky Mountain Stamp. Denver, Colo.: Rocky Mountain Stamp Pub. Co.

MLA (8th ed.) Citation

Queen City Philatelic Society and Eastern Stamp Exchange. The Rocky Mountain Stamp. Rocky Mountain Stamp Pub. Co.