Cita APA (7th ed.)

LEVENHAGEN, J. I. (1999). HVAC control system design diagrams. McGraw-Hill.

Cita Chicago (17th ed.)

LEVENHAGEN, John I. HVAC Control System Design Diagrams. New York: McGraw-Hill, 1999.

Cita MLA (9th ed.)

LEVENHAGEN, John I. HVAC Control System Design Diagrams. McGraw-Hill, 1999.