Louis Freeland Post, Henry George (1899). “The Single Tax: An Explanation, with Colored Charts and Illustrated Notes of the Land, Labor, and Fiscal Reform Advocated by Henry George”
Henry George, A. C. Auchmuty (1908). “Gems from Henry George: being memorable passages from the writings and addresses of the author of "Progress and poverty"”
Henry George (1916). “Progress and Poverty: An Inquiry Into the Cause of Industrial Depressions and of Increase of Want with Increase of Wealth; the Remedy”