000 00293nam a2200109Ia 4500
008 220204s9999 xx 000 0 und d
082 _bSIN
100 _aSINGH, D
245 0 _aMonograph on sample survey techniques for estimation of egg production
260 _aDelhi
_bICAR
_c1975
942 _cBK
999 _c27337
_d27337