Cita APA (7a ed.)

Knapp, R. R. (1960). The effects of time limits on the intelligence test performance of mexican and american subjects. [s.n.].

Cita Chicago Style (17a ed.)

Knapp, Robert R. The Effects of Time Limits on the Intelligence Test Performance of Mexican and American Subjects. [S.l.]: [s.n.], 1960.

Cita MLA (9a ed.)

Knapp, Robert R. The Effects of Time Limits on the Intelligence Test Performance of Mexican and American Subjects. [s.n.], 1960.