APA (7th ed.) Citation

Belgium,, Canada,, Denmark,, France,, Germany,, Greece,, . . . United States. Department of State. (2012). North Atlantic Treaty: Accession of Poland : protocol between the United States of America and other governments, signed at Brussels, December 16, 1997. United States Department of State.

Chicago Style (17th ed.) Citation

Belgium,, et al. North Atlantic Treaty: Accession of Poland : Protocol between the United States of America and Other Governments, Signed At Brussels, December 16, 1997. [Washington, D.C.]: United States Department of State, 2012.

MLA (8th ed.) Citation

Belgium,, et al. North Atlantic Treaty: Accession of Poland : Protocol between the United States of America and Other Governments, Signed At Brussels, December 16, 1997. United States Department of State, 2012.