Scientific and technological cooperation : protocol between the United States of America and Bulgaria, extending Agreement of January 4, 2008 ; signed at Washington, June 15, 2018
MLA
Scientific and Technological Cooperation: Protocol Between the United States of America and Bulgaria, Extending Agreement of January 4, 2008 ; Signed At Washington, June 15, 2018. Treaties and Other International Acts Series. [Washington, D.C.]: United States Department of State, [0180?]
APA, 7th edition
([0180?]). Scientific and technological cooperation: protocol between the United States of America and Bulgaria, extending Agreement of January 4, 2008 ; signed at Washington, June 15, 2018. Treaties and other international acts series. [Washington, D.C.]: United States Department of State
Chicago, 17th edition
Scientific and technological cooperation: protocol between the United States of America and Bulgaria, extending Agreement of January 4, 2008 ; signed at Washington, June 15, 2018. Treaties and other international acts series. [Washington, D.C.]: United States Department of State, [0180?]