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APA ZitierstilGaul, J. H. (1948). The neolithic period in Bulgaria: Early food-producing cultures of Eastern Europe. [Cambridge, Mass.: American School of Prehistoric Research.
Chicago ZitierstilGaul, James Harvey. The Neolithic Period in Bulgaria: Early Food-producing Cultures of Eastern Europe. [Cambridge, Mass.: American School of Prehistoric Research, 1948.
MLA ZitierstilGaul, James Harvey. The Neolithic Period in Bulgaria: Early Food-producing Cultures of Eastern Europe. [Cambridge, Mass.: American School of Prehistoric Research, 1948.