APA
Prager B., Richter F., . (1935). Beilsteins handbuch der Organischen chemie Supplementary Band (vol-20 to 22): Beilstein's Handbook of Organic Chemistry Supplementary Volume - XX and XXII. Berlin: Berlin Verlag Von Julius Springer.
Chicago
Prager B, Richter F, . 1935. Beilsteins handbuch der Organischen chemie Supplementary Band (vol-20 to 22): Beilstein's Handbook of Organic Chemistry Supplementary Volume - XX and XXII. Berlin: Berlin Verlag Von Julius Springer.
Harvard
Prager B., Richter F., . (1935). Beilsteins handbuch der Organischen chemie Supplementary Band (vol-20 to 22): Beilstein's Handbook of Organic Chemistry Supplementary Volume - XX and XXII. Berlin: Berlin Verlag Von Julius Springer.
MLA
Prager B, Richter F, . Beilsteins handbuch der Organischen chemie Supplementary Band (vol-20 to 22): Beilstein's Handbook of Organic Chemistry Supplementary Volume - XX and XXII. Berlin: Berlin Verlag Von Julius Springer. 1935.