Cita APA (7a ed.)

Sin autor & Burroughs Adding Machine Company. (1969). Promis: Remote Inquiry Systems : user's guide. [S.n.].

Cita Chicago Style (17a ed.)

Sin autor y Burroughs Adding Machine Company. Promis: Remote Inquiry Systems : User's Guide. Detroit: [S.n.], 1969.

Cita MLA (9a ed.)

Sin autor y Burroughs Adding Machine Company. Promis: Remote Inquiry Systems : User's Guide. [S.n.], 1969.