Abbs, B., & Freebairn, I. (1994). Blueprint one.: Students` book (1a. ed. 6a. imp.). Longman.
Chicago-čujuhus (17. p.)Abbs, Brian, juo Ingrid Freebairn. Blueprint One.: Students` Book. 1a. ed. 6a. imp. Madrid: Longman, 1994.
MLA-čujuhus (9. p.)Abbs, Brian, juo Ingrid Freebairn. Blueprint One.: Students` Book. 1a. ed. 6a. imp. Longman, 1994.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.