民國32年，TM5-3020，美國陸軍，克拉克 CA-1 空運履帶推土機維修手冊及零件目錄含TM5-1270 BABX型油壓59吋推土鏟(2)

1943, TM5-3020, War Department, Maintenance Manual and Parts Catalog; Tractor, Crawler Type, Gasoline, 20 DBHP, with Bulldozer and Towing Winch, Model CA-1 “Clarkair” & TM5-1270 Bulldozer Hydraulic Tractor Mounted , 59 Inch Blade , Model BABX For Model CA-1 Clarkair Crawler.(2)

民國32年，TM5-3020，美國陸軍，克拉克 CA-1 空運履帶推土機維修手冊及零件目錄含TM5-1270 BABX型油壓59吋推土鏟(2)《Black Water Museum Collections | 黑水博物館館藏》

1943, TM5-3020, War Department, Maintenance Manual and Parts Catalog; Tractor, Crawler Type, Gasoline, 20 DBHP, with Bulldozer and Towing Winch, Model CA-1 “Clarkair” & TM5-1270 Bulldozer Hydraulic Tractor Mounted , 59 Inch Blade , Model BABX For Model CA-1 Clarkair Crawler.(2) 民國32年，TM5-3020，美國陸軍，克拉克 CA-1 空運履帶推土機維修手冊及零件目錄含TM5-1270 BABX型油壓59吋推土鏟(2)《Black Water Museum Collections | 黑水博物館館藏》