Gatenby, E. V. (1962). A direct method english course, Book V. Longmans.
Chicago-čujuhus (17. p.)Gatenby, E. V. A Direct Method English Course, Book V. London: Longmans, 1962.
MLA-čujuhus (9. p.)Gatenby, E. V. A Direct Method English Course, Book V. Longmans, 1962.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.