APA (7. basım) Alıntı

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

Chicago Style (17. basım) Atıf

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

MLA (8th ed.) Atıf

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