Cita APA (7a ed.)

(1999). Heating/piping/air conditioning engineering: HPAC engineering. Penton Media.

Cita Chicago Style (17a ed.)

Heating/piping/air Conditioning Engineering: HPAC Engineering. Cleveland, OH: Penton Media, 1999.

Cita MLA (8a ed.)

Heating/piping/air Conditioning Engineering: HPAC Engineering. Penton Media, 1999.