1. Cognitive development from a strategy perspective : a Festschrift for Robert Siegler /: a Festschrift for Robert Siegler. (2017) Editors: Lemaire, Patrick, 1965- Other Names: Siegler, Robert S honouree. Record Type: Book Extent: 1 online resource, illustrations (black and white) View Content: Available online (eLD content is only available in our Reading Rooms) ↗