Cita APA (7a ed.)

(1977). Collana "Informa". Sperling & Kupfer.

Cita Chicago Style (17a ed.)

Collana "Informa". Milano: Sperling & Kupfer, 1977.

Cita MLA (8a ed.)

Collana "Informa". Sperling & Kupfer, 1977.