WHITMAN, W. C., & JOHNSON, W. M. (1987). Refrigeration and air conditioning technology: Conceptsprocedures, and troubleshooting techniques. Delmar Pub.

WHITMAN, William C., and William M. JOHNSON. Refrigeration and Air Conditioning Technology: Conceptsprocedures, and Troubleshooting Techniques. New York: Delmar Pub, 1987.

WHITMAN, William C., and William M. JOHNSON. Refrigeration and Air Conditioning Technology: Conceptsprocedures, and Troubleshooting Techniques. Delmar Pub, 1987.