Cita APA (7a ed.)

Pollard, C. J., & Sag, I. A. (1994). Head-driven phrase structure grammar. University of Chicago Press [etc.].

Cita Chicago Style (17a ed.)

Pollard, Carl Jesse, y Ivan A. Sag. Head-driven Phrase Structure Grammar. Chicago [etc.]: University of Chicago Press [etc.], 1994.

Cita MLA (9a ed.)

Pollard, Carl Jesse, y Ivan A. Sag. Head-driven Phrase Structure Grammar. University of Chicago Press [etc.], 1994.