APA (7th ed.) Citation

Pilkey, J., & McClean, K. Occupational Head-Butting and Skin Nodules. Wiley.

Chicago Style (17th ed.) Citation

Pilkey, Jana, and Karen McClean. Occupational Head-Butting and Skin Nodules. Wiley.

MLA (9th ed.) Citation

Pilkey, Jana, and Karen McClean. Occupational Head-Butting and Skin Nodules. Wiley.

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