Osofsky, G., Brown, W. W., Northup, S., & Bibb, H. (1969). Puttin' on ole massa: The slave narratives of Henry Bibb, William Wells Brown, and Solomon Northup ([1st ed.].). New York: Harper & Row.

Osofsky, Gilbert, William Wells Brown, Solomon Northup, and Henry Bibb. Puttin' On Ole Massa: The Slave Narratives of Henry Bibb, William Wells Brown, and Solomon Northup. [1st ed.]. New York: Harper & Row, 1969.

Osofsky, Gilbert, William Wells Brown, Solomon Northup, and Henry Bibb. Puttin' On Ole Massa: The Slave Narratives of Henry Bibb, William Wells Brown, and Solomon Northup. [1st ed.]. New York: Harper & Row, 1969.