APA-viite (7. p.)
U.S. Army & Air Force Exchange Service MarketLine Company Profile. Marketline.
Chicago-viite (17. p.)
U.S. Army & Air Force Exchange Service MarketLine Company Profile. Marketline.
MLA-viite (9. p.)
U.S. Army & Air Force Exchange Service MarketLine Company Profile. Marketline.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.