APA (7th ed.) Citation

Langley, B. C. (1982). Refrigeration and air conditioning (2nd ed.). Reston Pub Co.

Chicago Style (17th ed.) Citation

Langley, Billy C. Refrigeration and Air Conditioning. 2nd ed. Reston, Va: Reston Pub Co, 1982.

MLA (9th ed.) Citation

Langley, Billy C. Refrigeration and Air Conditioning. 2nd ed. Reston Pub Co, 1982.