APA-referens (7:e uppl.)

Estrada, J. E. (2000). A common bond, a common future [series]. Kabayan.

Chicago-referens (17:e uppl.)

Estrada, Joseph E. "A Common Bond, a Common Future [series]." Kabayan 2000.

MLA-referens (9:e uppl.)

Estrada, Joseph E. "A Common Bond, a Common Future [series]." Kabayan, 2000.