Cita APA (7th ed.)

Leyden, W. v. (1968). Seventeenth-century metaphysics: An examination of some main concepts and theories. G. Duckworth.

Cita Chicago (17th ed.)

Leyden, Wolfgang von. Seventeenth-century Metaphysics: An Examination of Some Main Concepts and Theories. London: G. Duckworth, 1968.

Cita MLA (9th ed.)

Leyden, Wolfgang von. Seventeenth-century Metaphysics: An Examination of Some Main Concepts and Theories. G. Duckworth, 1968.