TY - GEN AU - Upadhyay, Rajeev K AU - Mukerji, K.G AU - Rajak, R.L TI - IPM system in agriculture. Vol.I: principles and perspectives T2 - IPM system in agricultur SN - 8185353395 U1 - 632.96 PY - 1996/// CY - New Delhi PB - Aditya Books KW - AGRICULTURE ER -