Toward a behavioral ecology : a psychological systems approach to social problems / by William S. Dockens III. - Dockens, William S. (OLS)http://pul/name/33448 (s. n.])
Testo dattiloscritto.
Include bibliografia.

La vista e i colori ; e Carteggio con Goethe / Arthur Schopenhauer. - Schopenhauer, Arthur, 1788-1860. (OLS)http://pul/name/15397; Goethe, Johann Wolfgang von, 1749-1832. (OLS)http://pul/name/5475 (Boringhieri, 1959)