APA (7th ed.) Citation

Planck, M. (2001). The Mystery of Our Being. Quantum questions, 159-168.

Chicago Style (17th ed.) Citation

Planck, Max. "The Mystery of Our Being." Quantum Questions 2001: 159-168.

MLA (9th ed.) Citation

Planck, Max. "The Mystery of Our Being." Quantum Questions, 2001, pp. 159-168.

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