Kozlowska-Dawidziuk, Anna. <br/><br/>
Ludlow and Pridoli (Upper Silurian) Graptolites from the Arctic Islands, Canada  [electronic resource]. 

 - Ottawa :  NRC Research Press,  c2004. 
 - viii, 150 p. :  ill. 
<br/><br/><br/>Electronic reproduction. <br/>Palo Alto, Calif. : <br/>ebrary, <br/>2009. <br/>Available via World Wide Web. <br/>Access may be limited to ebrary affiliated libraries. 
<br/><br/><label>ISBN: </label>
<br/><br/><label>Subjects--Topical Terms: </label><br/>Graptolites.<br/>Chordata, Fossil.
<br/><br/><label>Index Terms--Genre/Form: </label><br/>Electronic books.
<br/><br/><label>LC Class. No.: </label>QE840.5  / .K69 2004eb