Kay, Marshall,  1904-1975 <br/><br/>
North American geosynclines / 
by Marshall Kay 
 - Boulder, Colo. :  Geological Society of America,  1951 
 - 143 p. :  ill. ;  25 cm. 
 - The Geological Society of America Memoir 48 .
<br/><br/> includes index 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geology--North America<br/>Geology, Stratigraphic