CROWELL, R. H. (1963). Introduction to Knot theory. Springer-Verlag.
Chicago-čujuhus (17. p.)CROWELL, Richard H. Introduction to Knot Theory. New York: Springer-Verlag, 1963.
MLA-čujuhus (9. p.)CROWELL, Richard H. Introduction to Knot Theory. Springer-Verlag, 1963.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.