Edelman, M., & Kenen, J. (1989). Secret Memo: U.S. response to Costa Rica's urgent request for security assistance. Grove Weidenfeld.
Citazione stile Chigago Style (17a edizione)Edelman, Marc, e Joanne Kenen. Secret Memo: U.S. Response to Costa Rica's Urgent Request for Security Assistance. Nueva York: Grove Weidenfeld, 1989.
Citatione MLA (9a ed.)Edelman, Marc, e Joanne Kenen. Secret Memo: U.S. Response to Costa Rica's Urgent Request for Security Assistance. Grove Weidenfeld, 1989.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.