000			00272 a2200121 4500
080			_a502 _bC 739 H
245	1		_aHandbook of nature study _cby A.B. Comstock
250			_a9th edn.
260			_c1919
650			_aNature Study
100	1		_aComstock, A.B. _d
901			_a3344
999			_c24494 _d24494