Cita APA

Thomson, A. J., & Martinet, A. V. Auxiliary verbs (8a ed.).

Citación estilo Chicago

Thomson, A. J., and A. V. Martinet. Auxiliary Verbs. 8a ed.

Cita MLA

Thomson, A. J., and A. V. Martinet. Auxiliary Verbs. 8a ed.

Warning: These citations may not always be 100% accurate.