Gibbons, Bob <br/><br/>
The secret life of flowers :  a guide to plant biology / 
Bob Gibbons. 
 - London :  Blandford Press,  1990 
 - 160 p. :  ill. ;  24 cm. 
<br/><br/>p. 157-158 
<br/><br/><label>ISBN: </label>0713721685 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Plant physiology.