Cita APA (7a ed.)

Costa Duran, S. (2007). Roof Design. Daab.

Cita Chicago Style (17a ed.)

Costa Duran, Sergi. Roof Design. Cologne: Daab, 2007.

Cita MLA (9a ed.)

Costa Duran, Sergi. Roof Design. Daab, 2007.