1. BASF AG. (1962). Letter to the German Embassy, New Delhi, 22 Jun. 1962, BArch B 102/122085.
2. Bayer AG. (1963). Letter to Hindustan Organic Chemicals and Government of India, 20 Aug. 1963, BArch B 102/122085.
3. Bayer Archives (BAL). (not dated a ). Haupt-Export-Länder, BAL 15-Da 1.5.
4. Bayer Archives (BAL). (not dated b). Note “Pharma-Geschäft INDIEN,” [c. 1970], BAL 302-236.
5. Bayer Archives (BAL). (1952a). Haupt-Export-Länder 1950-1952 der Farbenfabriken Bayer, BAL 15-Da 1.4.