AMONG UNKNOWN HOSTAGES relates the experiences of American civilians who were rounded up by the Nazis and held in Internment Camps once the U.S. entered WWII. Among these thousands of men, women, and children, gentiles and Jews, whose stories have not yet been told was John Tomczyk, whose unusual adventures before and during internment provide a look into an American's life in occupied Poland. Photos are included which demonstrate the unconquerable spirit of American patriots while inside a Nazi prison. Accounts of John's relatives escaping a partitioned Poland, tragic stories of immigrant life in his native Chicago, and the hand fate dealt him after repatriation will show the reader a family's journey spanning a very turbulent century.

The Laboratory Manual is a valuable tool designed to enhance your lab experience. The manual includes a variety of resources, such as lab activities, objectives, materials lists, step-by-step procedures, illustrations, and review questions.

Develop the knowledge and skills you need to maintain and troubleshoot today's complex heating, air conditioning, and refrigeration systems with REFRIGERATION & AIR CONDITIONING TECHNOLOGY, Ninth Edition. This best-selling, easy-to-understand resource provides hands-on guidance, practical applications, and the solid foundation you need to understand modern HVAC service and repair, its environmental challenges, and their solutions. Focused on sustainable technology and emphasizing new technologies and green awareness, the Ninth Edition features the latest advances in the HVAC/R industry, including updated content throughout the text and more than 400 new and revised figures and images. Drawing on decades of industry experience, the authors also cover the all-important soft skills and customer relations issues that today's professionals need to master for career success. Memorable real-world examples, hundreds of vibrant photos, and unique Service Call features bring key concepts to life and help you develop the knowledge and skills to succeed in today's dynamic industry.