ECKERSLEY, C. (1970). Essential English for foreign students: ECKERSLEY, C.E. Longman.
Chicago-čujuhus (17. p.)ECKERSLEY, C.E. Essential English for Foreign Students: ECKERSLEY, C.E. London: Longman, 1970.
MLA-čujuhus (9. p.)ECKERSLEY, C.E. Essential English for Foreign Students: ECKERSLEY, C.E. Longman, 1970.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.