Mehring, C. Richter's Collaborations, Richter's Turns, 1955-1971. Gerhard Richter : Early Work ; 1951 - 1972 , [ The contents of this volume evolved from "Gerhard Richter : a Symposion ", held at the Getty Center in Feb. 2007].
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रMehring, Christine. "Richter's Collaborations, Richter's Turns, 1955-1971." Gerhard Richter : Early Work ; 1951 - 1972 , [ The Contents of This Volume Evolved from "Gerhard Richter : A Symposion ", Held at the Getty Center in Feb. 2007] .
एमएलए (8वां संस्करण) प्रशस्ति पत्रMehring, Christine. "Richter's Collaborations, Richter's Turns, 1955-1971." Gerhard Richter : Early Work ; 1951 - 1972 , [ The Contents of This Volume Evolved from "Gerhard Richter : A Symposion ", Held at the Getty Center in Feb. 2007], .
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