Citazione Stile APA (7a Edizione)

Ariyarathna, I. D., & Pushpakumara, W. M. N. J. (2006). Life competencies and citizenship education. Educational Publ. Dep.

Citazione stile Chigago Style (17a edizione)

Ariyarathna, I. D., e W. M. N. J. Pushpakumara. Life Competencies and Citizenship Education. [Colombo]: Educational Publ. Dep, 2006.

Citatione MLA (9a ed.)

Ariyarathna, I. D., e W. M. N. J. Pushpakumara. Life Competencies and Citizenship Education. Educational Publ. Dep, 2006.