TY - BOOK A1 - Kropotkin, P. A. T1 - Mutal aid, Boston (Extending Horizons Books) 1955. Y1 - 1955 ER - TY - BOOK A1 - Kropotkin, P. A. T1 - The great French revolution 1789-1793. Vol. II, New York (Vanguard Press) 1929. Y1 - 1929 N1 - Notes in the copy ER - TY - BOOK A1 - Kropotkin, P. A. T1 - Russian and French Prisons, London (Ward and Downey) 1887. Y1 - 1887 N1 - Marks in the copy ER - TY - BOOK A1 - Kropotkin, P. A. T1 - Ethics. Origin and development, New York (Tudor Publishing) 1922. Y1 - 1922 ER - TY - BOOK A1 - Kropotkin, P. A. T1 - The great French revolution 1789-1793. Vol. I, New York (Vanguard Press) 1929. Y1 - 1929 N1 - Notes in the copy ER -