Gaya APA
LOUGHEED, L. (1995).
The Prentice hall regents prep series for the TOEFL test : .
Englewood Cliffs, N.J.:
Prentice-Hall Regents.
Gaya MLA
LOUGHEED, Lin.
"The Prentice hall regents prep series for the TOEFL test :".
Englewood Cliffs, N.J.:
Prentice-Hall Regents,
1995.
Buku.