APA (7th ed.) Citation

(2001). The Singer Sewing Machine is Patented. History Today, 51(8), 52.

Chicago Style (17th ed.) Citation

"The Singer Sewing Machine Is Patented." History Today 51, no. 8 (2001): 52.

MLA (9th ed.) Citation

"The Singer Sewing Machine Is Patented." History Today, vol. 51, no. 8, 2001, p. 52.

Warning: These citations may not always be 100% accurate.