Cita APA (7a ed.)

(1967). Eighteenth Annual Convention: 09. - 13. August 1967.

Cita Chicago Style (17a ed.)

Eighteenth Annual Convention: 09. - 13. August 1967. Boston, 1967.

Cita MLA (8a ed.)

Eighteenth Annual Convention: 09. - 13. August 1967. 1967.