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	1.	Ecological inference by Langbein, Laura Irwin Series: Quantitative applications in the social sciences;10 Material type: Text; Format: print ; Literary form: Not fiction Publication details: Newbury park Sage 1978 Availability: Items available for reference: School of Management Studies: Not for loan (1)Call number: 300.072 7 LAN. Add to cart (remove)
	2.	Ecological inference by Langbein, Laura Irwin Series: Quantitative applications in the social sciences;10 Material type: Text; Format: print ; Literary form: Not fiction Publication details: Newbury park Sage 1978 Availability: No items available. Add to cart (remove)

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