Vambery, R. G. (1976). Capital investment control in the air transport industry. Oceana Pub.
Lua i Stíl Chicago (17ú heag.)Vambery, Robert G. Capital Investment Control in the Air Transport Industry. Dobbs Ferry, N.Y: Oceana Pub, 1976.
Lua MLA (9ú heag.)Vambery, Robert G. Capital Investment Control in the Air Transport Industry. Oceana Pub, 1976.
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