Cita APA (7a ed.)

Herkimer, H., & Herkimer, H. (1947). Air conditioning. Chemical publishing.

Cita Chicago Style (17a ed.)

Herkimer, Herbert, y Harold Herkimer. Air Conditioning. New York: Chemical publishing, 1947.

Cita MLA (9a ed.)

Herkimer, Herbert, y Harold Herkimer. Air Conditioning. Chemical publishing, 1947.