Cita APA (7th ed.)

Whitman, W. C., & Johnson, W. M. (1988). Refrigeration and air conditioning technology: Concepts, procedures, and troubleshooting techniques. Delmar.

Cita Chicago (17th ed.)

Whitman, William C., i William M. Johnson. Refrigeration and Air Conditioning Technology: Concepts, Procedures, and Troubleshooting Techniques. Albany, N.Y: Delmar, 1988.

Cita MLA (9th ed.)

Whitman, William C., i William M. Johnson. Refrigeration and Air Conditioning Technology: Concepts, Procedures, and Troubleshooting Techniques. Delmar, 1988.