APA (7th ed.) Citation

Richtmyer, F. K., & Kennard, E. H. (1947). Introduction to modern physics (4th ed.). McGraw-Hill Book Co..

Chicago Style (17th ed.) Citation

Richtmyer, F. K., and E. H. Kennard. Introduction to Modern Physics. 4th ed. New York: McGraw-Hill Book Co., 1947.

MLA (9th ed.) Citation

Richtmyer, F. K., and E. H. Kennard. Introduction to Modern Physics. 4th ed. McGraw-Hill Book Co., 1947.