APA

Van Zeist W., Wasylikowa K. & Behre K. (1991). Progress in old world palaeoethnobotany : a retrospective view on the occasion of 20 years of the International Work Group for Palaeoethnobotany. Rotterdam: A. a. Balkema.

Chicago

Van Zeist Willem, Wasylikowa Krystyna and Behre Karl-Ernst. 1991. Progress in old world palaeoethnobotany : a retrospective view on the occasion of 20 years of the International Work Group for Palaeoethnobotany. Rotterdam: A. a. Balkema.

Harvard

Van Zeist W., Wasylikowa K. and Behre K. (1991). Progress in old world palaeoethnobotany : a retrospective view on the occasion of 20 years of the International Work Group for Palaeoethnobotany. Rotterdam: A. a. Balkema.

MLA

Van Zeist Willem, Wasylikowa Krystyna and Behre Karl-Ernst. Progress in old world palaeoethnobotany : a retrospective view on the occasion of 20 years of the International Work Group for Palaeoethnobotany. Rotterdam: A. a. Balkema. 1991.