Canmbell, Douglas Houghton, PH.D. <br/><br/>
The Structure and Development Of Mosses and Ferns  Archegoniatae 
Douglas Houghton Campbell, PH.D. 
 - Third Revised and Enlarged 
 - New York  The Macmillan Company  1930 
 - vii,ill.,708 
<br/><br/> Zb mean Botany Page 500-509 (Acc. No. Zb1-Zb343) & Page 578-581 (Acc. No. Zb344-Zb468) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mosses and Ferns-Structure and Development
<br/><br/><label>Dewey Class. No.: </label>Zb279