Pennell, J. (1918). Joseph Pennell's Liberty-Loan Poster: A text-book for artists and amateurs, governments and teachers and printers, with notes, an introduction and essay on the poster. Philadelphia [Pa.]: J.B. Lippincott Co..

Pennell, Joseph. Joseph Pennell's Liberty-Loan Poster: A Text-book for Artists and Amateurs, Governments and Teachers and Printers, With Notes, an Introduction and Essay On the Poster. Philadelphia [Pa.]: J.B. Lippincott Co., 1918.

Pennell, Joseph. Joseph Pennell's Liberty-Loan Poster: A Text-book for Artists and Amateurs, Governments and Teachers and Printers, With Notes, an Introduction and Essay On the Poster. Philadelphia [Pa.]: J.B. Lippincott Co., 1918.