Παραπομπή APA

Welte, J. W., Barnes, G. M., Tidwell, M. O., Hoffman, J. H., & Wieczorek, W. F. (2015). Gambling and Problem Gambling in the United States: Changes Between 1999 and 2013. J Gambl Stud.

Παραπομπή Chicago Style

Welte, John W., Grace M. Barnes, Marie-Cecile O. Tidwell, Joseph H. Hoffman, και William F. Wieczorek. "Gambling and Problem Gambling in the United States: Changes Between 1999 and 2013." J Gambl Stud 2015.

Παραπομπή MLA

Welte, John W., et al. "Gambling and Problem Gambling in the United States: Changes Between 1999 and 2013." J Gambl Stud 2015.

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