Hills, E., C., & Ford, J. D. M. (1917). First Spanish course. D.C. Heath.
Chicago-čujuhus (17. p.)Hills, E., C., juo J. D. M. Ford. First Spanish Course. New York: D.C. Heath, 1917.
MLA-čujuhus (9. p.)Hills, E., C., juo J. D. M. Ford. First Spanish Course. D.C. Heath, 1917.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.