International code of botanical nomenclature. [Code international de la nomenclature botanique. Internationaler Code der botanischen Nomenklatur]; adopted by the eleventh international botanical congress, Seattle, August 1969 - Stafleu, Frans Antonie; Conference:International Botanical Congress (11th : 1969 : Seattle, Wash.). (Utrecht International Association for Plant Taxonomy by Oosthoek, 1972)
English, French and German.
Bibliography: p. 394-397.
Keywords: Botany -- Nomenclature -- Congresses