APA (7th ed.) Citation

Griggs, E. L. (1938). Thomas Clarkson, the friend of slaves. University of Michigan Press.

Chicago Style (17th ed.) Citation

Griggs, Earl Leslie. Thomas Clarkson, the Friend of Slaves. Ann Arbor: University of Michigan Press, 1938.

MLA (9th ed.) Citation

Griggs, Earl Leslie. Thomas Clarkson, the Friend of Slaves. University of Michigan Press, 1938.

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