Cita APA (7a ed.)

Postal, P. M., & Joseph, B. D. (1990). Studies in relational grammar. University of Chicago Press.

Cita Chicago Style (17a ed.)

Postal, Paul M., y Brian D. Joseph. Studies in Relational Grammar. Chicago [etc.]: University of Chicago Press, 1990.

Cita MLA (9a ed.)

Postal, Paul M., y Brian D. Joseph. Studies in Relational Grammar. University of Chicago Press, 1990.