Turk, L. H. (1965). Foundation course in Spanish. D.C. Heath.
Chicago-čujuhus (17. p.)Turk, Laurel Herbert. Foundation Course in Spanish. Boston: D.C. Heath, 1965.
MLA-čujuhus (9. p.)Turk, Laurel Herbert. Foundation Course in Spanish. D.C. Heath, 1965.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.