Gaya APA
Lubell, P. (2004).
Writing and Activity Book (Levels 6 - 10) = Buku Menulis & Kegiatan (Level 6 - 10) .
hong kong:
Time Life Asia.
Gaya MLA
Lubell, Pamela.
"Writing and Activity Book (Levels 6 - 10) = Buku Menulis & Kegiatan (Level 6 - 10)".
hong kong:
Time Life Asia,
2004.
Text.