Sigler, L. E. (1966). Exercises in set theory. D. Van Nostrand.
Chicago-čujuhus (17. p.)Sigler, L. E. Exercises in Set Theory. Princeton: D. Van Nostrand, 1966.
MLA-čujuhus (9. p.)Sigler, L. E. Exercises in Set Theory. D. Van Nostrand, 1966.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.