000			00479cam a2200181 4500
003			OSt
005			20210412124426.0
008			730619s1973 maua b 001 0 eng
020			_a0674303253
040			_cATU
050	0	0	_aP136 _b.B7 1973
100	1		_aBrown, Roger, _915353
245	1	2	_aA first language; _bthe early stages/
260			_aCambridge _bHarvard University Press, _c1973.
300			_axx, 437 p. _billus. _c24 cm.
504			_aIncludes index
942			_2lcc _cBOOK
999			_c8210 _d8210