Here is what you need to cite or reference this web publication: 

MLA Style:

Zetterberg, Hans L., The Many-Splendored Society. Unfinished book manuscript. 2008-11-06. <http://www.zetterberg.org/InProgrs/The_Many-Splendored_Society/b_Front.htm>.

APA Style:

Zetterberg, Hans L. The Many-Splendored Society. Unfinished book manuscript. Retrieved 2008-11-06 from the World Wide Web: http://www.zetterberg.org/InProgrs/The_Many-Splendored_Society/b_Front.htm

Turabian Style:

Zetterberg, Hans L. The Many-Splendored Society. Unfinished book manuscript. [Online] available from http://www.zetterberg.org/InProgrs/The_Many-Splendored_Society/b_Front.htm; accessed 2008-11-06; Internet.