000			00755nam a22002057a 4500
003			BD-DhUL
005			20141223100552.0
008			141223s1965 -uka|||| |||| 001 0 eng d
040			_aBD-DhUL _cBD-DhUL
082			_a587.31 _bCOF
100			_aCob, boughton.
245			_aA field guide to the ferns : _band their related families of northestern and central north america / _cby Boughton Cobb.
260			_aCambridge : _bBoughton mifflin company, _cc1956.
300			_axviii, 281p. : _bill. ; _c19cm.
490			_athe peterson field guide series.
504			_aincludes bibliographical references and index.
650			_aFerns -- North America -- Identification.
650			_aFougères -- Amérique du Nord -- Identification.
942			_2ddc _cBK
999			_c23984 _d23984