APA (7th ed.) Citation

Prkachin, K. M. Assessing Pain by Facial Expression: Facial Expression as Nexus. Wiley.

Chicago Style (17th ed.) Citation

Prkachin, Kenneth M. Assessing Pain by Facial Expression: Facial Expression as Nexus. Wiley.

MLA (9th ed.) Citation

Prkachin, Kenneth M. Assessing Pain by Facial Expression: Facial Expression as Nexus. Wiley.

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