Paul V. Nelson 
Greenhouse operation and management. Ed 6 
 - 6th Ed. 
 - New Jersey  Prentice Hall  2003 
 - 692p 
Paul V. Nelson: Greenhouse operation and management. Ed 6.  (6th Ed.)  New Jersey.  Prentice Hall, 2003. 0-13-010577-5--(635.9823NEL)   
ENGLISH 
0-13-010577-5 
635.9823  / NEL