Cita APA

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

Citación estilo Chicago

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

Cita MLA

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