Norton. 1987. null 22 cm. xi, 463 p. Encuadernación en tapa blanda de editorial. Idioma Inglés. authoritative texts, backgrounds, criticism /. A Norton critical edition. The second section of this volume. includes three of his prefaces. a group of his letters, and a representative selection from the American notebooks : p. x. Bibliography: p. [455]-460 . ISBN: 0393954269