Cita APA

Langley, B. C. (1991). High-efficiency gas furnace troubleshooting handbook. Prentice Hall.

Citación estilo Chicago

Langley, Billy C. High-efficiency Gas Furnace Troubleshooting Handbook. Englewood Cliffs, New Jersey: Prentice Hall, 1991.

Cita MLA

Langley, Billy C. High-efficiency Gas Furnace Troubleshooting Handbook. Prentice Hall, 1991.

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