Clark, Raymond C.,  1937- <br/><br/>
Earth matters :  our living planet : basic environmental concepts and vocabulary / 
 Our living planet :  basic environmental concepts and vocabulary 
Raymond C. Clark. 
 - Brattleboro, Vt. :  Pro Lingua Associates,  c2009. 
 - iv, 68 p. :  col. ill. ;  28 cm. +  1 audio CD (4 3/4 in.) 
<br/><br/><label>ISBN: </label>9780866472890 (book) 0866472894 (book) 9780866472883 (audio CD) 0866472886 (audio CD) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>English language--Study and teaching--Foreign speakers.<br/>Vocabulary--Study and teaching--Foreign speakers.<br/>Earth sciences--Study and teaching--Activity programs.