Green 1992, p. 83. (EN) William Green, Zappata's Wooden Kingfisher, in Air International, Vol. 43, No. 2, Stamford, UK, Key Publishing, agosto 1992, pp. 81–90, ISSN 0306-5634 (WC · ACNP).
worldcat.org
Green 1992, p. 83. (EN) William Green, Zappata's Wooden Kingfisher, in Air International, Vol. 43, No. 2, Stamford, UK, Key Publishing, agosto 1992, pp. 81–90, ISSN 0306-5634 (WC · ACNP).