The Northwest European pollen flora, I :  Parts 1-7 / 
W. Punt, editor ; C.R. Janssen, Tj. Reitsma, G.C.S. Clarke, co-editors. 
 - Amsterdam ; New York :  Amsterdam ; New York :  Elsevier,  1976. 
<br/><br/> Reprinted from Review of Paleobotany and Palynology, vols. 17, 19, and 21.  Published under the auspices of the Royal Botanical Society of The Netherlands. 
<br/><br/>Bibliograhy: p. 141-142. 
<br/><br/><label>ISBN: </label>0444414215 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Pollen -- Identification -- Europe.--Pollen -- Identification -- Europe.--Pollen -- Identification -- Europe.<br/>Pollen -- Morphology.--Pollen -- Morphology.