http://en.wikipedia.org/wiki/Black_Panther_Party
http://www.historylearningsite.co.uk/black_panthers.htm
http://www.britannica.com/EBchecked/topic/68134/Black-Panther-Party
http://www.infoplease.com/encyclopedia/history/black-panthers.html
https://www.marxists.org/history/usa/workers/black-panthers/
http://www.historylearningsite.co.uk/black_panthers.htm
http://www.historylearningsite.co.uk/black_panthers.htm
http://www.britannica.com/EBchecked/topic/68134/Black-Panther-Party
http://www.infoplease.com/encyclopedia/history/black-panthers.html
https://www.marxists.org/history/usa/workers/black-panthers/
http://www.historylearningsite.co.uk/black_panthers.htm