Gaya APA

Samuels, M, A., Ropper, A, H. (2017). Samuels's Manual of Neurologic Therapeutics Ed.9 (9). Philadelphia: Wolters Kluwer Health.

Gaya MLA

Samuels, Martin, A.., Ropper, Allan, H.. "Samuels's Manual of Neurologic Therapeutics Ed.9". 9 Philadelphia: Wolters Kluwer Health, 2017. Text.