Cita APA (7a ed.)

Ullmann, L., & Navarro Aragay, R. (2012). Green Portal: Making the bridge between consumers and providers of green technologies.

Cita Chicago Style (17a ed.)

Ullmann, Lawrence, y Robert Navarro Aragay. Green Portal: Making the Bridge Between Consumers and Providers of Green Technologies. 2012.

Cita MLA (9a ed.)

Ullmann, Lawrence, y Robert Navarro Aragay. Green Portal: Making the Bridge Between Consumers and Providers of Green Technologies. 2012.