KIMBROUGH, V. F., & VAI, M. (1991). English on call level one. McGraw-hill.
Chicago-čujuhus (17. p.)KIMBROUGH, Victoria F., juo Marjorie VAI. English on Call Level One. New York: McGraw-hill, 1991.
MLA-čujuhus (9. p.)KIMBROUGH, Victoria F., juo Marjorie VAI. English on Call Level One. McGraw-hill, 1991.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.