APA Edition Citation

Crowell, R. H., & Fox, R. H. (1977). Introduction to knot theory.

Chicago Edition Citation

Crowell, Richard H., and Ralph H. Fox. Introduction to Knot Theory. New York, Springer Vwerlag, 1977.

MLA Edition Citation

Crowell, Richard H., and Ralph H. Fox. Introduction to Knot Theory. 1977.

Warning: These citations may not always be 100% accurate.