APA (7th ed.) Citation

Armstrong, D. F. (1999). Original signs: Gesture, sign, and the sources of language. Galludet University Press.

Chicago Style (17th ed.) Citation

Armstrong, David F. Original Signs: Gesture, Sign, and the Sources of Language. Washington, D.C.: Galludet University Press, 1999.

MLA (8th ed.) Citation

Armstrong, David F. Original Signs: Gesture, Sign, and the Sources of Language. Galludet University Press, 1999.