Παραπομπή APA

Kauffman,, L. H. (1991). Knots and physics (2nd.). World Scientific.

Παραπομπή Chicago Style

Kauffman,, Louis H. Knots and Physics. 2nd. Singapore: World Scientific, 1991.

Παραπομπή MLA

Kauffman,, Louis H. Knots and Physics. 2nd. World Scientific, 1991.