APA
Gulf Organization for Industrial Consulting, .Gulf statistical profile 2002. Doha, Qatar :Gulf Organization for Industrial Consulting, 2002: .
Chicago
Gulf Organization for Industrial Consulting, .Gulf statistical profile 2002. Doha, Qatar :Gulf Organization for Industrial Consulting, 2002: .
Harvard
Gulf Organization for Industrial Consulting, .Gulf statistical profile 2002. Doha, Qatar :Gulf Organization for Industrial Consulting, 2002: .
MLA
Gulf Organization for Industrial Consulting, .Doha, Qatar :Gulf Organization for Industrial Consulting, 2002: . .