Del Rosario, Romualdo Macalla,  1939- <br/><br/>
Herbertales of the Philippines / 
Romualdo Macalla Del Rosario. 
 - 1 microfilm reel :  positive ;  35 mm. 
<br/><br/>Thesis (Ph.D.) - University of Illinois, 1971 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Liverworts--Philippines.