Langley, B. C. (1990). Heating, ventilating, air conditioning, and refrigeration (4th ed.). Prentice-Hall.
芝加哥风格引文Langley, Billy C. Heating, Ventilating, Air Conditioning, and Refrigeration. 4th ed. Englewood Cliffs, N.J: Prentice-Hall, 1990.
MLA引文Langley, Billy C. Heating, Ventilating, Air Conditioning, and Refrigeration. 4th ed. Prentice-Hall, 1990.
警告：这些引文格式不一定是100％准确.