APA (7th ed.) Citation

Training Source Inc. Refrigeration fundamentals for heat pumps. Training Source Inc.

Chicago Style (17th ed.) Citation

Training Source Inc. Refrigeration Fundamentals for Heat Pumps. Washington: Training Source Inc.

MLA (8th ed.) Citation

Training Source Inc. Refrigeration Fundamentals for Heat Pumps. Training Source Inc.

Warning: These citations may not always be 100% accurate.