Harriet Tubman & the underground railroad
MLA
Crawford, Mary, and Mary Ruthsdotter. Harriet Tubman & the Underground Railroad. Santa Rosa, CA: National Women's History Project, n.d
APA, 7th edition
Crawford, M., & Ruthsdotter, M. (n.d). Harriet Tubman & the underground railroad. Santa Rosa, CA: National Women's History Project
Chicago, 17th edition
Crawford, Mary., and Mary Ruthsdotter. Harriet Tubman & the underground railroad. Santa Rosa, CA: National Women's History Project, n.d