APA (7th ed.) Citation

Langley, B. C. (1983). Estimating air conditioning systems. Reston Pub. Co.

Chicago Style (17th ed.) Citation

Langley, Billy C. Estimating Air Conditioning Systems. Reston, Va: Reston Pub. Co, 1983.

MLA (9th ed.) Citation

Langley, Billy C. Estimating Air Conditioning Systems. Reston Pub. Co, 1983.

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