Schofield,K <br/><br/>
Heteroaromatic nitrogen compounds the azoles 
by K.Schofield, M.R.Grimmett and B.R.T.Keene 
 - London  Cambridge University press  c 1976 
 - vii, 437p.; 22 cm. 
<br/><br/><label>ISBN: </label>0 521 20519 0 
<br/><br/><label>Dewey Class. No.: </label>547.64  /   SCH