''Auto De Fense''

A look at different types of anti protest weapons (including electrical, chemical, projectiles, sound frequency, etc.) and how to protect yourself from them. 

Excited Delirium - A protestor's guide to 'less-lethal' weaponry (2010's)

https://archive.org/details/ExcitedDelirium

''When a ball dreams, it dreams it's a Frisbee.''

''Suggested Level: PR (Professional)'' Oh my...

Official Rules of Ultimate Frisbee - 11th Edition

https://archive.org/details/RulesForUltimateFrisbee