I have some books for sale -- all in great condition -- on American social history. If you plan to write your M.A. thesis on U.S. history (particularly in the area of 19th century urban American history, 19th century immigrants, child welfare, labor laws, or child labor), you might find the following titles useful. The books can be viewed/bought on Allegro.
4329[tel]Labor's Story in the United States
432973003 - Urban Masses and Moral Order in America 1820-1920
432978426 - Immigrant Voices: New Lives in America 1773-1986
432982713 - Jacob A. Riis - The Battle with the Slum + How the Other Half Lives
433413781 - Orphan Trains to Missouri
432986775 - Fighting Poverty with Virtue: Moral Reform and America's Urban Poor, 1825-2000
433415345 - Habits of Compassion: Irish Catholic Nuns and the origins of New York's Welfare System 1830-1920
433416451 - Home to Work: Motherhood and the Politics of Industrial Homework in the United States
433417809 - From Poor Law to Welfare State: A History of Social Welfare in America, 4th ed
433418807 - Second Home: Orphan Asylums and Poor Families in America
433419728 - American Notes (Charles Dickens)
Many of these books are unavailable in Poland! Fabulous prices :)