Temperatures of and fire hazards caused by infrared lamps
Anderson, Paul M., Nicholas, J.E.
Temperatures of and fire hazards caused by infrared lamps - State College 1954 - 0.666666667 - No. 116; Pennsylvania Agricul .
Temperatures of and fire hazards caused by infrared lamps - State College 1954 - 0.666666667 - No. 116; Pennsylvania Agricul .