Edelman, M., & Kenen, J. (1989). Secret Memo: U.S. response to Costa Rica's urgent request for security assistance. Grove Weidenfeld.
Lua i Stíl Chicago (17ú heag.)Edelman, Marc, agus Joanne Kenen. Secret Memo: U.S. Response to Costa Rica's Urgent Request for Security Assistance. Nueva York: Grove Weidenfeld, 1989.
Lua MLA (9ú heag.)Edelman, Marc, agus Joanne Kenen. Secret Memo: U.S. Response to Costa Rica's Urgent Request for Security Assistance. Grove Weidenfeld, 1989.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.