Cita APA (7a ed.)

Penfield, W., & Roberts, L. (2014). Speech and Brain Mechanisms. Project Muse.

Cita Chicago Style (17a ed.)

Penfield, Wilder, y Lamar Roberts. Speech and Brain Mechanisms. Baltimore, Maryland: Project Muse, 2014.

Cita MLA (8a ed.)

Penfield, Wilder, y Lamar Roberts. Speech and Brain Mechanisms. Project Muse, 2014.