Benedikt, R., & Knecht, E. (1889). The chemistry of the coal-tar colours (2d ed.). G. Bell.
Chicago Style (17th ed.) CitationBenedikt, Rudolf, i Edmund Knecht. The Chemistry of the Coal-tar Colours. 2d ed. London: G. Bell, 1889.
Cita MLABenedikt, Rudolf, i Edmund Knecht. The Chemistry of the Coal-tar Colours. 2d ed. G. Bell, 1889.
Atenció: Aquestes cites poden no estar 100% correctes.