Não informado. (1971). Abstracta botanica. L. Eotvos University, Department of Plant Taxonomy and Ecology.
Chicago-Zitierstil (17. Ausg.)Não informado. Abstracta Botanica. Budapest: L. Eotvos University, Department of Plant Taxonomy and Ecology, 1971.
MLA-Zitierstil (8. Ausg.)Não informado. Abstracta Botanica. L. Eotvos University, Department of Plant Taxonomy and Ecology, 1971.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.