APA (7th ed.) Citation

Planck, M. (1949). Introduction to theoretical physics. Macmillan.

Chicago Style (17th ed.) Citation

Planck, Max. Introduction to Theoretical Physics. New York: Macmillan, 1949.

MLA (9th ed.) Citation

Planck, Max. Introduction to Theoretical Physics. Macmillan, 1949.

Warning: These citations may not always be 100% accurate.