Citazione Stile APA (7a Edizione)

Amarasinghe, A. G., & Pushpakumara, W. M. N. J. (2008). Life competencies and citizenship education. Educational Publ. Dep.

Citazione stile Chigago Style (17a edizione)

Amarasinghe, A. G., e W. M. N. J. Pushpakumara. Life Competencies and Citizenship Education. [Colombo]: Educational Publ. Dep, 2008.

Citatione MLA (9a ed.)

Amarasinghe, A. G., e W. M. N. J. Pushpakumara. Life Competencies and Citizenship Education. Educational Publ. Dep, 2008.