Ahlqvist, O., & Schlieder, C. (2020). Geogames and Geoplay. 1st ed. 2018. Springer International Publishing.
シカゴスタイル引用形Ahlqvist, Ola, , Christoph Schlieder. Geogames and Geoplay. 1st Ed. 2018. Springer International Publishing, 2020.
MLA引用形式Ahlqvist, Ola, , Christoph Schlieder. Geogames and Geoplay. 1st Ed. 2018. Springer International Publishing, 2020.
警告: この引用は必ずしも正確ではありません.