fɹʌm nˈaɪntiːnhˈʌndɹɪd sˈɪksti fˈoːɹ tə nˈaɪntiːnhˈʌndɹɪd sˈɛvənti tˈuː, hiː dᵻɹˈɛktᵻd ˌɛkskəvˈeɪʃənz ˌɔn ɐ mˈɛdɪˌiːvəl ɪslˈɑːmɪk tˈaʊn æt kˈæsɚɹ ˈælhˈeɪɚɹ ˈælʃˈɑːɹki, sˈɪɹiə, wˈɜːk lˈeɪɾɚ dᵻskɹˈaɪbd ɪn ɐ tˈuːvˈɑːljuːm bˈʊk hiː kˌoʊˈɔːθɚd, sˈɪɾi ɪnðə dˈɛzɚt, kˈæsɚɹ ˈælhˈeɪɚɹ ˈiːst.
From 1964 to 1972, he directed excavations on a Medieval Islamic town at Qasr al-Hayr al-Sharqi, Syria, work later described in a two-volume book he coauthored, City in the Desert, Qasr al-Hayr East.