APA Citation
United States. Patent Office. (1890). Index of patents relating to electricity. G.P.O. Retrieved from 10.5479/sil.401370.mq605801
MLA Citation
United States. Patent Office. Index of patents relating to electricity. G.P.O, 1890, 10.5479/sil.401370.mq605801
Chicago
United States. Patent Office. Index of patents relating to electricity. G.P.O, 1890. doi: 10.5479/sil.401370.mq605801
Warning: These citations may not always be complete (especially for serials).