CHATTOPADHYAY S. B PRINCIPLES AND PROCEDURES OF PLANT PROTECTION CHATTOPADHYAY S. B/PRINCIPLES AND PROCEDURES OF PLANT PROTECTION - NEW DELHI MOHAN 1997 - xiv, 584p ill.; Picture 24cm INDEX ISBN: 81-204-0202-2 Subjects--Topical Terms: LC Class. No.: 632.9 Dewey Class. No.: