Petretti's Coca Cola Collectibles Price Guide by Alan Petretti 1986 PB is a book that serves as a guide for collectors of Coca Cola memorabilia. It was written by Alan Petretti and published in 1986. The book provides information on the value of Coca Cola collectibles, including bottles, cans, signs, and other items. It is a valuable resource for collectors looking to buy or sell Coca Cola memorabilia.