Gaya APA

Haines, R, W., Hittle, D, C. (1993). Control systems for heating, ventilating and air conditioning (5th ed). New York: Chapman and Hall.

Gaya MLA

Haines, Roger, W.., Hittle, Douglas, C.. "Control systems for heating, ventilating and air conditioning". 5th ed New York: Chapman and Hall, 1993. Text.