APA

Belkin P., Mix D. E., Woehrel S. J. & Library of Congress. (2019). NATO: response to the crisis in Ukraine and security concerns in Central and Eastern Europe. [Washington, D.C.]: Congressional Research Service.

Chicago

Belkin Paul, Mix Derek E, Woehrel Steven J and Library of Congress. 2019. NATO: response to the crisis in Ukraine and security concerns in Central and Eastern Europe. [Washington, D.C.]: Congressional Research Service.

Harvard

Belkin P., Mix D. E., Woehrel S. J. and Library of Congress. (2019). NATO: response to the crisis in Ukraine and security concerns in Central and Eastern Europe. [Washington, D.C.]: Congressional Research Service.

MLA

Belkin Paul, Mix Derek E, Woehrel Steven J and Library of Congress. NATO: response to the crisis in Ukraine and security concerns in Central and Eastern Europe. [Washington, D.C.]: Congressional Research Service. 2019.