Friedel, Robert. "The History of the Zipper?". American Heritage of Invention & Technology. Forbes, Inc. Summer 1994, pp. 8-16

I used Mr. Friedel's article probably more than anything else when making this web page. It was very entertaining to read and an invaluable source of information.

Gurel, Lois. "Zipper". The World Book Encyclopedia. 1991, Vol. 21, pp. 612

I used this dictionary source to make sure that everything that I was putting down was correct. Although there was far less information here, it still verified a lot of things for me.