CCOP technical bulletin, vol. 20 / 
[ed. by Jiro Hirayama ...et. al.]. 
 - Ibaraki-ken, Japan :  Geological Survey of Japan,  1988. 
 - iv, 216 p. :  ill. 
<br/><br/><label>LCCN: </label>91016264     
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geology--Thailand.<br/>Paleontology--Stratigraphic.<br/>Paleontology--Mesozoic.<br/>Paleontology--Paleozoic.