Guerrilla Etiquette + Postering Techniques
http://www.robbieconal.com/guerrilla.html
ACLU: Know Your Rights [PDF]
http://www.aclu.org/kyr/kyr_english.pdf
ACLU: Bust Card [PDF]
http://www.positive-youth.com/PYF/subpages/download/files/adobe/bustcard.pdf
