00333nam a2200121 a 450000500170000002000150001708200160003210000060004811000240005424500810007826000310015930000210019020251203091656.0  a1559381698  a547.59bADV  d_  aPearson, William H.  aAdvances in Heterocyclic Natural Product Synthesis; Vol.1bA Research Annual  aGreenwichbJai Pressc1990  axii, 196p, 24 cm