Cite
APA Citation
Guo, S., & Fraser, M. W. (2015). Propensity Score Analysis : Statistical Methods and Applications. Los Angeles : SAGE Publications, Inc. http://access.bl.uk/ark:/81055/vdc_100025338064.0x000001
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Guo, S., & Fraser, M. W. (2015). Propensity Score Analysis : Statistical Methods and Applications. Los Angeles : SAGE Publications, Inc. http://access.bl.uk/ark:/81055/vdc_100025338064.0x000001