English Language Services & English language services. (1964). English 900.: Book three. Macmillan.
Chicago-čujuhus (17. p.)English Language Services juo English language services. English 900.: Book Three. London: Macmillan, 1964.
MLA-čujuhus (9. p.)English Language Services juo English language services. English 900.: Book Three. Macmillan, 1964.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.