International code of botanical nomenclature : adopted by the Thirteenth International Botanical Congress, Sydney, August 1981 - Voss, E. G. (Edward G.), 1929-; International Botanical Congress 1981 : Sydney, N.S.W.) (Scheltema & Holkema, Utrecht, The Netherlands, The Hague, Boston, W. Junk : Bohn, 1983)
English, French, and German
Includes indexes
Keywords: Botany -- Nomenclature -- Congresses