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: Columbus Indiana: An American Landmark
Product description: Great book featuring the architecture of Columbus Indiana known for its inovative contemporary and Modern buildings and spaces. 110 color and black and white illustrations / photographs of architecture, architectural details, floorplans, church buildings, educational structures, public spaces. Architects include: Harry Weese, Eero Saarinen, Norman Fletcher, Susana Torre, Richard Meier, Harold Roth, William Moore, Jean Tinquely (sculpture) Venturi and Rauch, I M Pei, Edward L Barnes, Eliot Noyes, Henry Moore (sculpture Bruce Adams, Hardy Holzman Pfeifer, Eliel Saarinen James, Perkinson, Isaac Hodgson, Charles Sparrell, Bruce Adams, and other artists / architects. Includes map of the city with sites marked, list of important buildings, bilbiography. Black cloth hardcover with illustrated dust jacket. 168 pages. Measures 9 1/4 by 10 1/2 inches. Interesting book, nicely illustrated.
Product brand: Balthazar Korab
Target attributes: Page Count
Answer: attribute: page count
value: 168 pages
source: product description