Origins of cognitive skills :
the Eighteenth Annual Carnegie Symposium on Cognition /
edited by Catherine Sophian.
APA Citation
Symposium on Cognition. (18th : 1983 : Carnegie-Mellon University)., Sophian, C., Carnegie Mellon University. (1984). Origins of cognitive skills: the Eighteenth Annual Carnegie Symposium on Cognition. Hillsdale, N.J.: L. Erlbaum Associates.
MLA Citation
Symposium on Cognition. (18th : 1983 : Carnegie-Mellon University), Catherine Sophian, and Carnegie Mellon University. Origins of Cognitive Skills: the Eighteenth Annual Carnegie Symposium On Cognition. Hillsdale, N.J.: L. Erlbaum Associates, 1984.
Warning: These citations may not always be complete (especially for serials).