1986.
Weatherford Jack. Genghis Khan and the Making of the Modem World. New York, 2004.
Whitfield Susan, ed., with Ursula Sims-Williams. The Silk Road: Trade, Travel, War, and Faith. London, 2004.
«Why do Some Expectant Fathers Experience Pregnancy Symptoms?» Scientific American, October 2004.
Wiet Gaston. Baghdad: Metropolis of the Abbasaid Caliphate. Translated by Seymour Feiler. Norman: University of Oklahoma Press, 1971.
Wilford John Noble. The Mapmakers. Rev. ed. New York: Alfred A. Knopf, 2000.
Wills Garry. Venice: Lion City: The Religion of Empire. New York: Simon & Schuster, 2001.
Wood Frances. Did Marco Polo Go to China? London, 1995: Boulder, Colorado, 1996.
—. The Silk Road: Two Thousand Years in the Heart of China. Berkeley: University of California Press, 2002.
Wylie A. Chinese Researches. 1897. Taipei: Ch’eng Wen Publishing Company, 1966.
Yang Zhijiu. «The Great Kublai Khan in Marco Polo’s Eyes». Historical Monthly (Taiwan), November 2000.
—. Makeboluo zaiZhongguo [Marco Polo in China]. Tianjin shi: Nan kai da xue chu ban she, 1999.
—. Yan shi son lun [Three Articles Concerning the Yuan Dynasty]. Peking: Ren min chu ban she: Xin hua shu dian fa xing, 1985.
Yamashita Michael. Marco Polo: A Photographer's Journey. New York, 2002.
Yii Chiin-fang. Encountering the Dharma. New York: Global Scholarly Publications, 2003.
Yule Henry, Sir, tr. and ed., and Henri Cordier, rev. Cathay and the Way Thither: Being a Collection of Medieval Notices of China. Reprint of 1913 ed. 4 vols. in 2. Taipei: Ch’eng-Wen Publishing Company, 1966.
Zorzi Alvise, ed. Marco Polo, Venezia e VOriente: Arte, commercio, civilita al tempo di Marco Polo. Milan: Electa, 1981.
—. Vita di Marco Polo veneziano. Milan: Rusconi, 1982.
*************************************************************************************** ******