Cita APA (7a ed.)

Venn, J. (1971). Symbolic logic (2nd ed., rev. and rewritten.). Chelsea.

Cita Chicago Style (17a ed.)

Venn, John. Symbolic Logic. 2nd ed., rev. and rewritten. New York: Chelsea, 1971.

Cita MLA (9a ed.)

Venn, John. Symbolic Logic. 2nd ed., rev. and rewritten. Chelsea, 1971.