Smit, E G.(2011). The March to Reliable Metrics : A Half-century of Coming Closer to the Truth: A Half-century of Coming Closer to the Truth. Journal of Advertising Research, 51(1 50th Anniversary Supplement), 124-135. doi:10.2501/jar-51-1-124-135
MLA ZitierstilSmit, Edith G. "The March to Reliable Metrics : A Half-century of Coming Closer to the Truth: A Half-century of Coming Closer to the Truth". Journal of Advertising Research, 51.1 50th Anniversary Supplement ( 2011 ): 124-135.
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