APA

(2004). A Spectrum Book. Englewood Cliffs: Prentice-Hall.

Chicago

2004. A Spectrum Book. Englewood Cliffs: Prentice-Hall.

Harvard

(2004). A Spectrum Book. Englewood Cliffs: Prentice-Hall.

MLA

A Spectrum Book. Englewood Cliffs: Prentice-Hall. 2004.