Dyfyniad APA

Bishop, D., & Bishop, S. (1998). "Twin language": A risk factor for language impairment?

Dyfyniad Arddull Chicago

Bishop, D., and S. Bishop. "Twin Language": A Risk Factor for Language Impairment? 1998.

Dyfyniad MLA

Bishop, D., and S. Bishop. "Twin Language": A Risk Factor for Language Impairment? 1998.

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