Index herbariorum - Stafleu, Frans Antonie 1921-1997 (Utrecht, Netherlands : Oosthoek, Scheltema & Holkema, 1974)
Part I. The herbaria of the world / compiled by Patricia K. Holmgren and Wil Keuken
"A guide to the location and contents of the world's public herbaria"
Keywords: HERBARIOS -- DIRECTORIOS