A study of some enriching variables in a free-environment for rats

Bernstein, L.

Amsterdam : Elsevier

ISSN:	0022-3999
Source:	Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
Topics:	Medicine Psychology
Type of Medium:	Electronic Resource
URL:	http://linkinghub.elsevier.com/retrieve/pii/0022-3999(73)90008-1