Il Primo Libro.
Hard Cover, New York: Harper & Brothers, 1936. Good with no dust jacket.
Hard Cover, New York: Harper & Brothers, 1936. Good with no dust jacket.
Hardcover, Bogotá: El Áncora Editores, 1992. First Edition. Very Good in Very Good dust jacket.
Hard Cover, Bogotá: Plaza & Janes Editores, 1984. Very Good in Very Good dust jacket.
Soft Cover, Lima: Mosca Azul Editores, 1977. First Edition. Good with no dust jacket.
Softcover, Fair Haven, New Jersey: Ediciones Nuevo Espacio, 2003. First Edition. Very Good with no dust jacket.
Softcover, Milano: Giovanni De Vecchi Editore, 1985. First Edition. Good.
Softcover, Petrópolis: Editora Vozes Ltda. 1978. Good with no dust jacket.
Hardcover, Moskva: Sovestskii Pisatel, 1973. Good with no dust jacket.
Softcover, Porto: Centro de Estudos Pessoanos, 1977. Good+ with no dust jacket.
Softcover, Chapel Hill: University of North Carolina Press, 1967. Very Good with No dust jacket as issued.
Softcover, Madras: Sri Ramakrishna Math, 1974. Good with no dust jacket.
Hardcover, Tübingen: J. C. B. Mohr, 1974. Good with no dust jacket.
Soft Cover, Bassano Del Grappa, Italy: Il Lions Club Di Bassano Del Grappa, 1980. Very Good with No dust jacket as issued.
Softcover, Rio de Janeiro: Livraria José Olympio Editora, 1975. Very Good with no dust jacket.
Softcover, Leipzig: Karl Robert Langewiesche, 1959. Very Good in Very Good dust jacket.
Hardcover, Walluf Bei Wiesbaden: Martin Sändig, 1973. Facsimile Reprint. Good with no dust jacket.
Softcover, Toronto, Canada: Pontifical Institute of Medaieval Studies, 1975. Very Good with No dust jacket as issued.
Softcover, Saint-Pourçain-sur-Sioule: Bleu autour, 2005. Fine with No dust jacket as issued.
Softcover, France: Editions Thierry Magnier, 2007. Fine with No dust jacket as issued.
Soft Cover, Madrid: Sociedad de Educación Atenas, 1972. Good with no dust jacket.
Hardcover, Wauconda, Illinois: Bolchazy-Carducci Publishers, 2003. Very Good with No dust jacket as issued.
Hard Cover, Moskva: Izdatelstvo Nauka I Tekhnika, 1987. Good with no dust jacket.
Softcover, Chapel Hill: University of North Carolina Department of Romance Languages, 1986. Very Good with no dust jacket.
Hard Cover, New York: Undzer Veg, 1948. Good with no dust jacket.
Soft Cover, Moskva: Rossiiskii Gosudarstvennyi Gumanitarnyi Universitet, 2005. Very Good with no dust jacket.