Cita APA (7a ed.)

Lehrs, E. (1951). Man or matter: Introduction to a spiritual understanding of nature on the basis of Goethe's method of training observation and thought. Faber and Faber.

Cita Chicago Style (17a ed.)

Lehrs, Ernst. Man or Matter: Introduction to a Spiritual Understanding of Nature on the Basis of Goethe's Method of Training Observation and Thought. London: Faber and Faber, 1951.

Cita MLA (9a ed.)

Lehrs, Ernst. Man or Matter: Introduction to a Spiritual Understanding of Nature on the Basis of Goethe's Method of Training Observation and Thought. Faber and Faber, 1951.