Cita APA (7a ed.)

May, R. B., Tolman, C. W., & Schoenfeldt, M. G. (1967). Effects of pre-training exposure to the CS on conditioned suppression. [s.n.].

Cita Chicago Style (17a ed.)

May, R. B., C. W. Tolman, y M. G. Schoenfeldt. Effects of Pre-training Exposure to the CS on Conditioned Suppression. [S.l.]: [s.n.], 1967.

Cita MLA (9a ed.)

May, R. B., et al. Effects of Pre-training Exposure to the CS on Conditioned Suppression. [s.n.], 1967.