Students' warrants for belief in scientific knowledge claims /
Leach, John.
Economic and Social Research Council (Great Britain)
Children's Learning in Science Research Group.
Science Education Group.
Leeds : Children's Learning in Science Research Group ; York : Science Education Group,
1993.
"Working paper...from the ESRC project on the development of children's understanding of the nature of science based at  the Children's Learning in Science Research Group, University of Leeds, and the Science Education Group, University of  York"