Penggayaan APA
KRASHEN, Stephen D.. (1995).
Principles and practice in second language acquisition .
New York:
Phoenix ELT.
Chicago Style
KRASHEN, Stephen D..
Principles and practice in second language acquisition.
New York:
Phoenix ELT,
1995.
Buku.
MLA Style
KRASHEN, Stephen D..
Principles and practice in second language acquisition.
New York:
Phoenix ELT,
1995.
Buku.
Turabian Style
KRASHEN, Stephen D..
Principles and practice in second language acquisition.
New York:
Phoenix ELT,
1995.
Buku.