Text in English and Dutch. [vi], 118pp, many black and white photographs, charts and diagrams. Printed card covers, colour photograph wrapping covers and spine, white titles on front and spine. 8vo. Shelf number sticker crossed out in pen in bottom left corner of front cover, rear cover lightly soiled. Corners curling. Text block edges lightly soiled. Lender's stamps and markings inside covers and on half-title page and copyright pages. Page of additional authorial notes loosely laid in.
