APA引文

Calkhoven, L. (2008). Harriet Tubman: Leading the way to freedom. Sterling.

Chicago Style (17th ed.) Citation

Calkhoven, Laurie. Harriet Tubman: Leading the Way to Freedom. New York: Sterling, 2008.

MLA引文

Calkhoven, Laurie. Harriet Tubman: Leading the Way to Freedom. Sterling, 2008.

警告：這些引文格式不一定是100％准確.