(1955). Scientific and Technical Societies of the United States and Canada. Washington: National Academy of Sciences, National Research Council.
استشهاد بنمط شيكاغوScientific and Technical Societies of the United States and Canada. Washington: National Academy of Sciences, National Research Council, 1955.
MLA استشهادScientific and Technical Societies of the United States and Canada. Washington: National Academy of Sciences, National Research Council, 1955.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.