C.F. Hollander, H.A. Becker (eds.) ; commissioned by the Steering Committee on Future Health Scenarios ; translation from Dutch by C.N. ter Heide-LepeyNijhoff1987
adopted by the Thirteenth International Botanical Congress, Sydney, August 1981 ; prepared and edited by E.G. Voss ... [et al.]Bohn, Scheltema & Holkema1983