APA Edition Citation

Penfield, W. &. R. (1959). Speech and Brain Mechanisms. Princeton University press.

Chicago Edition Citation

Penfield, Wilder & Roberts. Speech and Brain Mechanisms. Princeston: Princeton University press, 1959.

MLA Edition Citation

Penfield, Wilder & Roberts. Speech and Brain Mechanisms. Princeton University press, 1959.

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