Lua APA (7ú heag.)
ebrary, Inc. (1990). Fostering flexibility in the engineering work force. National Academy Press.
Lua i Stíl Chicago (17ú heag.)
ebrary, Inc. Fostering Flexibility in the Engineering Work Force. Washington, D.C.: National Academy Press, 1990.
Lua MLA (9ú heag.)
ebrary, Inc. Fostering Flexibility in the Engineering Work Force. National Academy Press, 1990.
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