1. Benzidine exposure as a cause of bladder tumors;Zavon;Arch. Environ. Hlth.,1973
2. Benzidin in arbeitsmedizinischer sicht;Ehrlicher von;Ztb. Arbeitsmed. Arbeitsschutz.,1958
3. Synthetic Organic Chemicals, U.S. Production and Sales, 1962;US Tariff Commission,1963