The herbarium handbook / 
edited by Diane Bridson and Leonard Forman. 
 - rev. ed. 
 - Kew, Eng. :  Royal Botanic Gardens,  1992. 
 - xii, 303 p. :  ill., maps.  25 cm. 
<br/><br/><label>ISBN: </label>0947643451 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Herbaria--Rules and practice.<br/>Plants--Collection and preservation.