Bulletin of the Association for Preservation Technology. Association for Preservation Technology International (APT).
Chicago-čujuhus (17. p.)Bulletin of the Association for Preservation Technology. Association for Preservation Technology International (APT).
MLA-čujuhus (9. p.)Bulletin of the Association for Preservation Technology. Association for Preservation Technology International (APT).
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.