Hopf, L., & Nef, W. (1948). Introduction to the differential equations of physics. Dover Publications.
Chicago Style (17th ed.) CitationHopf, L., and Walter Nef. Introduction to the Differential Equations of Physics. New York: Dover Publications, 1948.
MLA (8th ed.) CitationHopf, L., and Walter Nef. Introduction to the Differential Equations of Physics. Dover Publications, 1948.
Warning: These citations may not always be 100% accurate.