Robert Ingersoll

Middlebrowart

Robert Ingersoll: The Great Agnostic's Journey (English Edition)

Robert Ingersoll                                

Legare Street Press

Ingersollia: Gems Of Thought From The Lectures, Speeches, And Conversations Of Col. Robert G. Ingersoll, Representative Of His Opinions And Beliefs

New Focus Recordings

Robert Ingersoll in Conversation with Erik Pearson

Anson Street Press

Ingersollia                                      

Library of Alexandria

The Works of Robert G. Ingersoll, (Complete 12 Volumes) (English Edition)

The Portable Robert Ingersoll: A Rich Selection From "The Great Agnostic's" Whole Range of Lectures, Speeches, and Writing. (English Edition)

e-artnow

The Works of Robert G. Ingersoll (Vol. 1-12): Complete Edition (English Edition)

Ulan Press

The Works of Robert G. Ingersoll, Volume 8      

Cosimo Classics

The Works of Robert G. Ingersoll (3)