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 ↑ 344.046                         environmental protection         → 333.72 344.45046 363.72     

 
See also:

 ↑ D.PUB.M                         Environmental law    ≈ 344.046 
 ↑ 333.72                         conservation  → 344.046  639.9  719  ≈ S.SPEC.32.BJ  `18C 
 ↑ 363.7                         pollution, environmental concerns  → 304.2  344.046  628.5  632.95 

 

SciGator: explore University of Pavia libraries... — <http://scigator.unipv.it/indexe.php> : 2017.02.14 - 2020.09.29 -
« <http://www-dimat.unipv.it/biblio/dewey.php> : 2015.06.18 - 2017.02.14