Cita APA (7a ed.)

Hülsen, H. V. (1981). Design liability and state of the art: The United States and Europe at a crossroads. [s.n.].

Cita Chicago Style (17a ed.)

Hülsen, Hans-Viggo V. Design Liability and State of the Art: The United States and Europe at a Crossroads. [S.l.]: [s.n.], 1981.

Cita MLA (9a ed.)

Hülsen, Hans-Viggo V. Design Liability and State of the Art: The United States and Europe at a Crossroads. [s.n.], 1981.