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	1.	Image from Google Jackets	Experimental and quari - experimental designs for research by Campbell, Donald T Stanley, Julian C Material type: Text; Format: print ; Literary form: Not fiction Publication details: Chicago ; Rand McNally College publishing company ; 1963 Availability: Items available for loan: Dr VKRV Rao Library (1)Call number: 370.724 CAM. Place hold Save to lists Add to cart (remove)
	2.	Image from Google Jackets	Unobtrusive measures nonreactive research in the social sciences by Campbell, Donald T Schwartz, Richard D Sechrest, Lee Weeb, Eugene J Material type: Text; Format: print ; Literary form: Not fiction Publication details: Chicago ; Rand mcnally and company ; 1973 Availability: Items available for loan: Dr VKRV Rao Library (1)Call number: 153.40724 WEB. Place hold Save to lists Add to cart (remove)
	3.	Image from Google Jackets	Incentives motivation and the economics of information by Campbell, Donald E Material type: Text; Format: print ; Literary form: Not fiction Publication details: Cambridge ; Cambridge university press ; 1995 Availability: Items available for loan: Dr VKRV Rao Library (1)Call number: 302.13 CAM. Place hold Save to lists Add to cart (remove)
	4.	Image from Google Jackets	Design and operation of smallholder irrigation in south Asia / Donald campbell by Campbell,Donald World Bank Series: World Bank technical paper number Material type: Text; Format: print ; Literary form: Not fiction Publication details: Washington, D.C ; World Bank ; 1994 Availability: Items available for loan: Dr VKRV Rao Library (1)Call number: D 627.52 CAM. Place hold Save to lists Add to cart (remove)