APA (7th ed.) Citation

Bonvillian, J. D., & Nelson-Metlay, V. (2020). Simplified Signs: Volume 2, Simplified sign lexicon, descriptions, and memory aids : a manual sign-communication system for special populations. Open Book Publishers.

Chicago Style (17th ed.) Citation

Bonvillian, John D., and Val Nelson-Metlay. Simplified Signs: Volume 2, Simplified Sign Lexicon, Descriptions, and Memory Aids : A Manual Sign-communication System for Special Populations. Cambridge, UK: Open Book Publishers, 2020.

MLA (9th ed.) Citation

Bonvillian, John D., and Val Nelson-Metlay. Simplified Signs: Volume 2, Simplified Sign Lexicon, Descriptions, and Memory Aids : A Manual Sign-communication System for Special Populations. Open Book Publishers, 2020.