Erven, E. v. (1989). Stages of people power: The Philippines Educational Theater Association. Center for the Study of Education in Developing Countries.
Citazione stile Chigago Style (17a edizione)Erven, Eugene van. Stages of People Power: The Philippines Educational Theater Association. The Hague: Center for the Study of Education in Developing Countries, 1989.
Citatione MLA (9a ed.)Erven, Eugene van. Stages of People Power: The Philippines Educational Theater Association. Center for the Study of Education in Developing Countries, 1989.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.