APA-referens (7:e uppl.)

Horwood, P. J. (1997). Power++ developer's professional reference. McGraw-Hill.

Chicago-referens (17:e uppl.)

Horwood, Peter J. Power++ Developer's Professional Reference. New York: McGraw-Hill, 1997.

MLA-referens (9:e uppl.)

Horwood, Peter J. Power++ Developer's Professional Reference. McGraw-Hill, 1997.