Cita APA

Ehrhart, G. (1968). A century of chemistry. Dusseldorf: Econverlag.

Chicago Style Citation

Ehrhart, Gustav. A Century of Chemistry. Dusseldorf: Econverlag, 1968.

Cita MLA

Ehrhart, Gustav. A Century of Chemistry. Dusseldorf: Econverlag, 1968.

Atenció: Aquestes cites poden no estar 100% correctes.