Cita APA (7a ed.)
Schmitz-Hoffmann, C. Voluntary Standard Systems: A Contribution to Sustainable Development. Springer.
Cita estilo Chicago (17a ed.)
Schmitz-Hoffmann, Carsten. Voluntary Standard Systems: A Contribution to Sustainable Development. Berlín, Alemania: Springer.
Cita MLA (9a ed.)
Schmitz-Hoffmann, Carsten. Voluntary Standard Systems: A Contribution to Sustainable Development. Springer.
Precaución: Estas citas no son 100% exactas.