Index herbariorum : a guide to the location and contents of the world's public herbaria - Stafleu, Frans Antonie (Utrecht : Bohn, Scheltema & Holkema ; The Hague ; Boston : W. Junk, 1981)
pt. 1. The herbaria of the world / compiled by Patricia K. Holmgren, Will Keuken, and Eileen K. Schofield. Seventh edition.
Keywords: HERBARIOS -- DIRECTORIOS