APA

Irala N., . (1964). Mental efficiency with -out fatigue. New York: Joseph F. Wagner.

Chicago

Irala Narciso, . 1964. Mental efficiency with -out fatigue. New York: Joseph F. Wagner.

Harvard

Irala N., . (1964). Mental efficiency with -out fatigue. New York: Joseph F. Wagner.

MLA

Irala Narciso, . Mental efficiency with -out fatigue. New York: Joseph F. Wagner. 1964.