APA (7th ed.) Citation

Heisenberg, W. (1930). The physical principles of the quantum theory. Dover Publications.

Chicago Style (17th ed.) Citation

Heisenberg, Werner. The Physical Principles of the Quantum Theory. New York: Dover Publications, 1930.

MLA (9th ed.) Citation

Heisenberg, Werner. The Physical Principles of the Quantum Theory. Dover Publications, 1930.