Pison, G., Monden, C., & Smits, J. (2015). Twinning Rates in Developed Countries: Trends and Explanations. Wiley.
Lua i Stíl Chicago (17ú heag.)Pison, G., C. Monden, agus J. Smits. Twinning Rates in Developed Countries: Trends and Explanations. Wiley, 2015.
Lua MLA (9ú heag.)Pison, G., et al. Twinning Rates in Developed Countries: Trends and Explanations. Wiley, 2015.
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