00575nam a2200241Ia 4500 141004s9999 xx 000 0 und d 81 85421 29 3 a English 333.7515 Ray GL Ray GL Ray A study forestry extension Calcutta Naya Prokash 1996 99 p. 21.5 cm KAUCOF Farm forestry BK 304144 304144 0 0 0 0 KAUCOF KAUCOF 1 333.7515 Ray KAU_COF-3299 2019-07-15 00:00:00 2019-07-04 2014-10-04 BK