Roberts, R. (1973). The classic slum: Salford life in the first quarter of the century. Penguin.
Chicago-viite (17. p.)Roberts, Robert. The Classic Slum: Salford Life in the First Quarter of the Century. Harmondsworth: Penguin, 1973.
MLA-viite (8. p.)Roberts, Robert. The Classic Slum: Salford Life in the First Quarter of the Century. Penguin, 1973.
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