OAG desktop guide.
Official Airline Guides, inc.
Oak Brook, Ill. : Official Airline Guides,
c1995-c2000.
Companion ed. to: OAG desktop guide (Worldwide ed.), vols. for 1995-June 1999; and to: OAG flight guide. Worldwide, vols. for July 1999-
Airlines
OAG desktop flight guide (North American ed.)
OAG flight guide. North America
OAG desktop guide (Worldwide ed.)
OAG desktop guide. Worldwide