Gaya APA
Larsen, D., LONG, M, H. (2014).
AN INTRODUCTION TO SECOND LANGUAGE ACQUISITION RESEARCH .
New York:
Routledge.
Gaya MLA
Larsen, Diane., LONG, MICHAEL, H..
"AN INTRODUCTION TO SECOND LANGUAGE ACQUISITION RESEARCH".
New York:
Routledge,
2014.
Art Original.