The Cengage Refrigeration & Air Conditioning Technology 8th Ed Hardcover is a comprehensive textbook authored by Bill Johnson, Bill Whitman, John Tomczyk, and Eugene Silberstein. It covers the subject area of Technology & Engineering, specifically focusing on Refrigeration and Air Conditioning Technology. Published by Cengage in 2020, this eighth edition textbook is designed for adult and further education levels, catering to those interested in these Technical subjects. The hardcover format and English language make it a valuable resource for students and professionals in the field. Very Good condition, the only defect being a tiny scratch on the rear cover. See the photo.. This is a 9 lb. book.