(1981). Block 3A research design: Part1: causation and control, part2: experimental design, part3: design of surveys,acknowledgements. Milton Keynes: The open university.
Chicago Style CitationBlock 3A Research Design: Part1: Causation and Control, Part2: Experimental Design, Part3: Design of Surveys,acknowledgements. Milton Keynes: The open university, 1981.
MLA CitationBlock 3A Research Design: Part1: Causation and Control, Part2: Experimental Design, Part3: Design of Surveys,acknowledgements. Milton Keynes: The open university, 1981.
Warning: These citations may not always be 100% accurate.