Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.

APA Citation Edition Citation

Popova, T. (2010). Plant environment of man between 6000 and 2000 B.C. in Bulgaria. John and Erica Hedges Ltd..

Chicago Citation Edition Citation

Popova, Tzvetana. Plant Environment of Man Between 6000 and 2000 B.C. in Bulgaria. Oxford: John and Erica Hedges Ltd., 2010.

MLA Citation Edition Citation

Popova, Tzvetana. Plant Environment of Man Between 6000 and 2000 B.C. in Bulgaria. John and Erica Hedges Ltd., 2010.