APA

United States, Unesco & United States. (2016). Environment and conservation: water resources : agreement between the United States of America and the United Nations Educational, Scientific and Cultural Organization (UNESCO) signed at Alexandria, Virginia, October 29, 2009. [Washington, D.C.]: United States Department of State.

Chicago

United States, Unesco and United States. 2016. Environment and conservation: water resources : agreement between the United States of America and the United Nations Educational, Scientific and Cultural Organization (UNESCO) signed at Alexandria, Virginia, October 29, 2009. [Washington, D.C.]: United States Department of State.

Harvard

United States, Unesco and United States. (2016). Environment and conservation: water resources : agreement between the United States of America and the United Nations Educational, Scientific and Cultural Organization (UNESCO) signed at Alexandria, Virginia, October 29, 2009. [Washington, D.C.]: United States Department of State.

MLA

United States, Unesco and United States. Environment and conservation: water resources : agreement between the United States of America and the United Nations Educational, Scientific and Cultural Organization (UNESCO) signed at Alexandria, Virginia, October 29, 2009. [Washington, D.C.]: United States Department of State. 2016.