Instruction: Using the product's title, description, features, price, and brand, identify and retrieve the values associated with a specified set of target attributes. Output the extracted values along with their respective sources (e.g., title or feature) indicating where each value was found.

Input:
Product title: By Jim Sargent Yesterday's Tiger Heroes (1st First Edition) [Paperback]
Product description: Opening Day Special! Order now and receive NOT only a SPECIAL SALE price, but receive a Limited Time Special SIGNED COPY!!! Celebrate with huge savings on this baseball compendium on all things Tigers! "Yesterday's Tiger Heroes" is a history of the 1956 Major League Detroit Tigers and the ball club's players, from All-Stars Al Kaline and Harvey Kuenn to unsung heroes like Wayne Belardi and Buddy Hicks. Unfamiliar readers will learn what baseball meant in the 1950s while those 'who were there' will enjoy a host of fond memories. With a foreword by Bob Miller and an introduction by David Hillman, this thoroughly researched book is sure to become the 'go-to'; book for anyone interested in this era of the Detroit Tigers!
Product price: $2,827.18
Product brand: Visit Amazon's Jim Sargent Page
Target attributes: Format
Answer: attribute: format
value: paperback
source: product title