Dyfyniad APA

Benedikt, R., & Knecht, E. (1889). The chemistry of the coal-tar colours (2d ed.). G. Bell.

Dyfyniad Arddull Chicago

Benedikt, Rudolf, and Edmund Knecht. The Chemistry of the Coal-tar Colours. 2d ed. London: G. Bell, 1889.

Dyfyniad MLA

Benedikt, Rudolf, and Edmund Knecht. The Chemistry of the Coal-tar Colours. 2d ed. G. Bell, 1889.

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