APA

Clack G., U. S. Department of State & Bureau of intern. inform. programs. (2007). America is. [Washington, D. C.]: [s.n.].

Chicago

Clack G, U. S. Department of State and Bureau of intern. inform. programs. 2007. America is. [Washington, D. C.]: [s.n.].

Harvard

Clack G., U. S. Department of State and Bureau of intern. inform. programs. (2007). America is. [Washington, D. C.]: [s.n.].

MLA

Clack G, U. S. Department of State and Bureau of intern. inform. programs. America is. [Washington, D. C.]: [s.n.]. 2007.