Herr, R. (2010). Gefahrstoff Asbest.
Cita Chicago (17th ed.)Herr, Roland. Gefahrstoff Asbest. Bonn, 2010.
Cita MLA (8th ed.)Herr, Roland. Gefahrstoff Asbest. 2010.
Atenció: Aquestes cites poden no estar 100% correctes.
Cita APA (7th ed.)