Nagel, E. (1961). The structure of science: Problems in the logic of scientific explanation. New York: Harcourt,Brace & World,Inc.
Чикагска система за цитиранеNagel, Ernest. The Structure of Science: Problems in the Logic of Scientific Explanation. New York: Harcourt,Brace & World,Inc, 1961.
MLA формат за цитиранеNagel, Ernest. The Structure of Science: Problems in the Logic of Scientific Explanation. New York: Harcourt,Brace & World,Inc, 1961.
Внимание: Тези цитати може да не са 100% точни.