Institution, 8. B. S. Oil-burning air heaters.
Chicago-čujuhus (17. p.)Institution, 8096 British Standards. Oil-burning Air Heaters.
MLA-čujuhus (9. p.)Institution, 8096 British Standards. Oil-burning Air Heaters.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.