International directory of botanical gardens.

Utrecht : Bohn, Scheltema & Holkema, 1977.

vi, 270 pages ; 24 cm.

3rd ed. /

Cover title: International directory of botanical gardens II

First ed. has author: International Association of Botanical Gardens; 2d ed. compiled by H. R. Fletcher, D. M. Henderson, and H. T. Prentice

Includes indexes