Gaya APA

dkk., M, A. (2004). Twenty Years On: A Report Of The Promesa Programme In Colombia (Pertama). Colombia: Bernard Van Leer Foundation.

Gaya MLA

dkk., Marta, Arango,. "Twenty Years On: A Report Of The Promesa Programme In Colombia". Pertama Colombia: Bernard Van Leer Foundation, 2004. Text.