Cita APA (7th ed.)
Ruwet, N., & Smith, N. S. H. (1973). An introduction to generative grammar. North-Holland.
Cita Chicago (17th ed.)
Ruwet, Nicolas, i Norval S. H. Smith. An Introduction to Generative Grammar. Amsterdam, Holanda: North-Holland, 1973.
Cita MLA (9th ed.)
Ruwet, Nicolas, i Norval S. H. Smith. An Introduction to Generative Grammar. North-Holland, 1973.
Atenció: Aquestes cites poden no estar 100% correctes.