Gaya APA

Ropper, A, H., Samuels, M, A. (2009). Adam and Victors Principles of Neurology (9th Ed.). New York: Sams.

Gaya MLA

Ropper, Allan, H.., Samuels, Martin, A.. "Adam and Victors Principles of Neurology". 9th Ed. New York: Sams, 2009. Buku.