APA引文

Ahlqvist, O., & Schlieder, C. (2020). Geogames and Geoplay. 1st ed. 2018. Springer International Publishing.

Trích dẫn kiểu Chicago

Ahlqvist, Ola, và Christoph Schlieder. Geogames and Geoplay. 1st Ed. 2018. Springer International Publishing, 2020.

MLA引文

Ahlqvist, Ola, và Christoph Schlieder. Geogames and Geoplay. 1st Ed. 2018. Springer International Publishing, 2020.

警告：这些引文格式不一定是100％准确.