APA (7. basım) Alıntı
Schmitz-Hoffmann, C. Voluntary Standard Systems: A Contribution to Sustainable Development. Springer.
Chicago Style (17. basım) Atıf
Schmitz-Hoffmann, Carsten. Voluntary Standard Systems: A Contribution to Sustainable Development. Berlín, Alemania: Springer.
MLA (9th ed.) Atıf
Schmitz-Hoffmann, Carsten. Voluntary Standard Systems: A Contribution to Sustainable Development. Springer.
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