Cover image not available
Two sheets (1 fold.) ([6]p.) and 18 cards ([36] sides) in plastic envelope.
OBNB doesn't sell books, but you may be able to find a copy at one of these websites:
Looking at birds by Royal Society for the Protection of Birds. ISBN 0333155955. Published by R.S.P.B. in 1975. Publication and catalogue information, links to buy online and reader comments.