Zeist, W. v., Wasylikowa, K., Behre, K., & Entjes-Nieborg, G. (1991). Progress in old world palaeoethnobotany: A retrospective view on the occasion of 20 years on the International Work Group for Palaeoethnobotany. Rotterdam: A. A. Balkema.
استشهاد بنمط شيكاغوZeist, Willem van., Krystyna Wasylikowa, Karl-Ernst Behre, و G. Entjes-Nieborg. Progress in Old World Palaeoethnobotany: A Retrospective View On the Occasion of 20 Years On the International Work Group for Palaeoethnobotany. Rotterdam: A. A. Balkema, 1991.
MLA استشهادZeist, Willem van., Krystyna Wasylikowa, Karl-Ernst Behre, و G. Entjes-Nieborg. Progress in Old World Palaeoethnobotany: A Retrospective View On the Occasion of 20 Years On the International Work Group for Palaeoethnobotany. Rotterdam: A. A. Balkema, 1991.