Cita APA (7a ed.)

Cheng, R. K. L., & Fung, V. S. K. (2011). Travelling through history (1. publ.). Aristo Educational Pr.

Cita Chicago Style (17a ed.)

Cheng, Rita K. L., y Venus S. K. Fung. Travelling Through History. 1. publ. Hong Kong: Aristo Educational Pr, 2011.

Cita MLA (9a ed.)

Cheng, Rita K. L., y Venus S. K. Fung. Travelling Through History. 1. publ. Aristo Educational Pr, 2011.