Cita APA (7th ed.)

Helfert. (2013). Design Science: Perspectives from Europe (1.). Springer International Publishing.

Cita Chicago (17th ed.)

Helfert. Design Science: Perspectives from Europe. 1. Springer International Publishing, 2013.

Cita MLA (8th ed.)

Helfert. Design Science: Perspectives from Europe. 1. Springer International Publishing, 2013.

Atenció: Aquestes cites poden no estar 100% correctes.