Environmental Quality Act 1974 (Act 127), regulations, rules & orders  as at 25th June 2011 
compiled by Legal Research Board 
 - New York  Springer  c2004. 
 - xiv, 476 p.  ill.  24 cm. 
<br/><br/><label>ISBN: </label>0387005900 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Audiometry--Handbooks, manuals, etc.<br/>Auditory pathways--Handbooks, manuals, etc.<br/>Speech perception--Handbooks, manuals, etc.