Gaya APA
First language acquisition: methods, description and explanation. (1989).
Cambridge:
Cambridge University Press.
Gaya Chicago
First language acquisition: methods, description and explanation.
.
Cambridge:
Cambridge University Press,
1989.
Buku.
Gaya MLA
First language acquisition: methods, description and explanation.
.
Cambridge:
Cambridge University Press,
1989.
Buku.
Gaya Turabian
First language acquisition: methods, description and explanation.
Cambridge:
Cambridge University Press,
1989.
Buku.