APA (7th ed.) Citation

Ferrel, B. R., & Ferrel, B. A. Pain the Elderly.

Chicago Style (17th ed.) Citation

Ferrel, B. R., and B. A. Ferrel. Pain the Elderly.

MLA (9th ed.) Citation

Ferrel, B. R., and B. A. Ferrel. Pain the Elderly.

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