APA (7th ed.) Citation

Melzack, R. (1973). The puzzle of pain / (by) Ronald Melzack. Penguin Education.

Chicago Style (17th ed.) Citation

Melzack, Ronald. The Puzzle of Pain / (by) Ronald Melzack. Harmondsworth: Penguin Education, 1973.

MLA (9th ed.) Citation

Melzack, Ronald. The Puzzle of Pain / (by) Ronald Melzack. Penguin Education, 1973.

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