Lua APA (7ú heag.)

Grafilo, J. (1999). The politics of diplomacy. Philippine Graphic.

Lua i Stíl Chicago (17ú heag.)

Grafilo, John. "The Politics of Diplomacy." Philippine Graphic 1999.

Lua MLA (9ú heag.)

Grafilo, John. "The Politics of Diplomacy." Philippine Graphic, 1999.

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