National Academy of Sciences (U.S.), National Academy of Engineering, Institute of Medicine (U.S.), National Research Council (U.S.), & ebrary, Inc. (1997). Preparing for the 21st century: The education imperative. National Academy of Sciences.
Цитирование в стиле Чикаго (17-е изд.)National Academy of Sciences (U.S.), National Academy of Engineering, Institute of Medicine (U.S.), National Research Council (U.S.), и Inc ebrary. Preparing for the 21st Century: The Education Imperative. [Washington, D.C.]: National Academy of Sciences, 1997.
Цитирование MLA (9-е изд.)National Academy of Sciences (U.S.), et al. Preparing for the 21st Century: The Education Imperative. National Academy of Sciences, 1997.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.