Gaya APA

Hoppenfeld, J, D., Hoppenfeld, S. (2018). Orthopaedic neurology : a diagnostic guide to neurologic levels (Second Edition). Philadelphia: Wolters Kluwer.

Gaya MLA

Hoppenfeld, J., D.., Hoppenfeld, Stanley. "Orthopaedic neurology : a diagnostic guide to neurologic levels". Second Edition Philadelphia: Wolters Kluwer, 2018. Text.