Forray, M. J. (1968). Variational calculus in science and engineering. McGraw-Hill.
Chicago Style (17th ed.) CitationForray, Marvin J. Variational Calculus in Science and Engineering. New York, Sydney: McGraw-Hill, 1968.
ציטוט MLAForray, Marvin J. Variational Calculus in Science and Engineering. McGraw-Hill, 1968.
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