APA (7th ed.) Citation

Guido, J. W. (2015). Learn american sign language: Everything you need to start signing * complete beginner's guide * 800+ signs.

Chicago Style (17th ed.) Citation

Guido, James W. Learn American Sign Language: Everything You Need to Start Signing * Complete Beginner's Guide * 800+ Signs. 2015.

MLA (8th ed.) Citation

Guido, James W. Learn American Sign Language: Everything You Need to Start Signing * Complete Beginner's Guide * 800+ Signs. 2015.

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