Cita APA (7a ed.)

Speas, M. J. (1990). Phrase structure in natural language. Kluwer Academic.

Cita Chicago Style (17a ed.)

Speas, Margaret J. Phrase Structure in Natural Language. Dordrecht [etc.]: Kluwer Academic, 1990.

Cita MLA (9a ed.)

Speas, Margaret J. Phrase Structure in Natural Language. Kluwer Academic, 1990.