APA

Perks C., Beveridge T., . (2003). Guide to Enterprise IT Architecture. New York: Springer-Verlag.

Chicago

Perks C, Beveridge T, . 2003. Guide to Enterprise IT Architecture. New York: Springer-Verlag.

Harvard

Perks C., Beveridge T., . (2003). Guide to Enterprise IT Architecture. New York: Springer-Verlag.

MLA

Perks C, Beveridge T, . Guide to Enterprise IT Architecture. New York: Springer-Verlag. 2003.