APA
(2001). Number Rumble Grade 1-6: 2001-2003. Philippines: Aklat Kalinangan Corp.
Chicago
2001. Number Rumble Grade 1-6: 2001-2003. Philippines: Aklat Kalinangan Corp.
Harvard
(2001). Number Rumble Grade 1-6: 2001-2003. Philippines: Aklat Kalinangan Corp.
MLA
Number Rumble Grade 1-6: 2001-2003. Philippines: Aklat Kalinangan Corp. 2001.