Cepl-Kaufmann, G., & Sokoll, A. M. N. "From the North comes the light to us!": Scandinavian artits in Friedrichshagen at the turn of the century / Gertrude Cepl-Kaufmann. Anne M. N. Sokoll. A cultural history of the avant-garde in the Nordic countries 1900 - 1925.(2012).
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Cepl-Kaufmann, Gertrude, و Anne M. N. Sokoll. ""From the North Comes the Light to Us!": Scandinavian Artits in Friedrichshagen at the Turn of the Century / Gertrude Cepl-Kaufmann. Anne M. N. Sokoll." A Cultural History of the Avant-garde in the Nordic Countries 1900 - 1925.(2012) .
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Cepl-Kaufmann, Gertrude, و Anne M. N. Sokoll. ""From the North Comes the Light to Us!": Scandinavian Artits in Friedrichshagen at the Turn of the Century / Gertrude Cepl-Kaufmann. Anne M. N. Sokoll." A Cultural History of the Avant-garde in the Nordic Countries 1900 - 1925.(2012), .