The psychological bases of Science :  a process approach. 

 - [Washington,  1965] 
 - AAAS miscellaneous publication, 65-8 .
 - American Association for the Advancement of Science. AAAS miscellaneous publication no. 65-8.  American Association for the Advancement of Science. AAAS miscellaneous publication no. 65-8. .
<br/><br/> Papers written by Robert Gagne and others.  Preparation of these materials was sponsored by the Commission on Science Education under a grant from the National Science Foundation to the American Association for the Advancement of Science. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science -- Study and teaching (Elementary)--Science -- Study and teaching (Elementary)<br/>Education, Elementary -- Curricula.--Education, Elementary -- Curricula.