Paperback
details (United Kingdom).(see also: Pamphlet)
details (USA).(see also: Pamphlet)
details (Germany).(see also: Broschüre)
details (Canada).(see also: Pamphlet)
ISBN: 978-0-86056-106-4
ISBN-10: 0-86056-106-2
Dept. of the Environment · 1983