APA Citation

Bonvillian, J. D., & Nelson-Metlay, V. (2020). Simplified signs: A manual sign-communication system for special populations. Cambridge, England: OpenBook Publishers.

Chicago Style Citation

Bonvillian, John D.,, and Val Nelson-Metlay. Simplified Signs: A Manual Sign-communication System for Special Populations. Cambridge, England: OpenBook Publishers, 2020.

MLA Citation

Bonvillian, John D.,, and Val Nelson-Metlay. Simplified Signs: A Manual Sign-communication System for Special Populations. Cambridge, England: OpenBook Publishers, 2020.

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