Perception and the physical world
Printed book - Armstrong David Malet, cop. 1961
Berkeley
Printed book - Pitcher George, 1977
Mathematics education : a quarterly journal devoted to mathematics education and research
Printed magazine - Mathematics Education
4S
Printed book - Society for Social Studies of Science
MT : Mathematics Teaching
Printed magazine - Association of Teachers of Mathematics
Physik, physiologische Chemie und Pharmazie an der Universitat Tubingen
Printed book - Hermann Armin, 1980