Alston, W. J. (1850). The slavery question: Speech of Hon. William J. Alston, of Alabama, in the House of Representatives, April 18, 1850. [Washington: Printed at the Congressional Globe Office.

Alston, William Jeffreys. The Slavery Question: Speech of Hon. William J. Alston, of Alabama, in the House of Representatives, April 18, 1850. [Washington: Printed at the Congressional Globe Office, 1850.

Alston, William Jeffreys. The Slavery Question: Speech of Hon. William J. Alston, of Alabama, in the House of Representatives, April 18, 1850. [Washington: Printed at the Congressional Globe Office, 1850.