Billy and Paulita; Joy of the Birds; MegaHoax: The Strange Plot to Exhume Billy the Kid and Become President; and Billy the Kid's Pretenders: Brushy Bill and John Miller; can all be purchased at Amazon.com and BarnesandNoble.com or ordered through bookstores.

Links to external sites:

Amazon.com | Joy of the Birds

BarnesandNoble.com | Joy of the Birds

Amazon.com | Megahoax

BarnesandNoble.com | Megahoax

BarnesandNoble.com | Billy the Kid's Pretenders

Amazon.com | Billy The Kid's Writings

BarnesandNoble.com | Billy The Kid's Writings

Amazon.com | Cracking the Billy The Kid case Hoax