Cita APA (7a ed.)

Roper Center for Public Opinion Research. (1987). The Roper Center American Collection: Profiles of the mayor collections. [s.n.].

Cita Chicago Style (17a ed.)

Roper Center for Public Opinion Research. The Roper Center American Collection: Profiles of the Mayor Collections. [S.l.]: [s.n.], 1987.

Cita MLA (9a ed.)

Roper Center for Public Opinion Research. The Roper Center American Collection: Profiles of the Mayor Collections. [s.n.], 1987.