George Allen & Unwin Ltd. (1994). How things work: The universal encyclopedia of Machines Vol. II. Harper Collins Publications.
Chicago-čujuhus (17. p.)George Allen & Unwin Ltd. How Things Work: The Universal Encyclopedia of Machines Vol. II. New delhi: Harper Collins Publications, 1994.
MLA-čujuhus (9. p.)George Allen & Unwin Ltd. How Things Work: The Universal Encyclopedia of Machines Vol. II. Harper Collins Publications, 1994.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.