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

APA Citation Edition Citation

(1986). The 6th Symposium of the International Working Group on Palaeobotany [Groningen] 1983. (Russ.) -.

Chicago Citation Edition Citation

The 6th Symposium of the International Working Group on Palaeobotany [Groningen] 1983. (Russ.) -. 1986.

MLA Citation Edition Citation

The 6th Symposium of the International Working Group on Palaeobotany [Groningen] 1983. (Russ.) -. 1986.