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APA Citation
Kern, M. L., Eichstaedt, J. C., Schwartz, H. A., Dziurzynski, L., Ungar, L. H., Stillwell, D. J., Kosinski, M., Ramones, S. M., & Seligman, M. E. P. (n.d.). the Online Social Self. Assessment, 21, 158–169. http://access.bl.uk/ark:/81055/vdc_100055912910.0x00001e