ELECTRONIC	h   t   t   p   c o l o n   s l a s h   s l a s h   p s y c h c l a s s i c s dot y o r k u dot c   a   s l a s h   f r e u d   s l a s h   p s y c h o   s l a s h   i d	http://psychclassics.yorku.ca/freud/psycho/id	1