APA Citation
United States. Patent Office. (1889). Index of patents relating to electricity. G.P.O. Retrieved from 10.5479/sil.401369.mq605800
MLA Citation
United States. Patent Office. Index of patents relating to electricity. G.P.O, 1889, 10.5479/sil.401369.mq605800
Chicago
United States. Patent Office. Index of patents relating to electricity. G.P.O, 1889. doi: 10.5479/sil.401369.mq605800
Warning: These citations may not always be complete (especially for serials).