Research in venting direct gas heaters when no chimmey connections are avaiable (report No.2)
Bray, J. L
Research in venting direct gas heaters when no chimmey connections are avaiable (report No.2) - Indiana : Purdue University, 1948. - 66 p. ; 21 cm. - Research Series ; 105 .
Research in venting direct gas heaters when no chimmey connections are avaiable (report No.2) - Indiana : Purdue University, 1948. - 66 p. ; 21 cm. - Research Series ; 105 .