"These notes aim to supplement and support the Data bulletin disks" - p15.
Brent Spar : teachers' notes with text, graphics and tabular data items on WWF-UK's computerised Data bulletin by Ken Webster. ISBN 1858500796. Published by WWF-UK with the co-operation of Greenpeace, Shell U.K. Ltd in 1995. Publication and catalogue information, links to buy online and reader comments.