Two maps on 2 folded leaves in pockets attached to inside back cover of v. 3.
In slipcase.
Ecological survey of Zambia : the traverse records of C.G. Trapnell, 1932-43 by C. G. Trapnell. ISBN 1842460048. Published by Royal Botanic Gardens Kew in 2001. Publication and catalogue information, links to buy online and reader comments.