APA (7 वां संस्करण) प्रशस्ति पत्र

Singer Company. (1893). Catalogue of Singer sewing machines for family use. Singer Manufacturing Co..

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Singer Company. Catalogue of Singer Sewing Machines for Family Use. [New York]: Singer Manufacturing Co., 1893.

एमएलए (8वां संस्करण) प्रशस्ति पत्र

Singer Company. Catalogue of Singer Sewing Machines for Family Use. Singer Manufacturing Co., 1893.