Cita APA

ebrary, Inc, Herrmann, A., & Steinbach, M. (2013). Nonmanuals in sign language. John Benjamins.

Citación estilo Chicago

ebrary, Inc, Annika Herrmann, and Markus Steinbach. Nonmanuals in Sign Language. Amsterdam: John Benjamins, 2013.

Cita MLA

ebrary, Inc, et al. Nonmanuals in Sign Language. John Benjamins, 2013.