![](/img/cover-not-exists.png)
Discussion
Carl Bereiter, Mary O'Brien, David Olson, Marlene Scardamalia, Harvey Graff, Chad GaffieldVolume:
17
Year:
1986
Language:
english
Pages:
6
DOI:
10.1007/bf01807479
File:
PDF, 541 KB
english, 1986