APA-referens (7:e uppl.)

Sibal, J. A. R. (1997). Philippine labor jurisprudence and practice (5th ed.). Central Lawbook Publishing.

Chicago-referens (17:e uppl.)

Sibal, Jose Agaton R. Philippine Labor Jurisprudence and Practice. 5th ed. Quezon City: Central Lawbook Publishing, 1997.

MLA-referens (9:e uppl.)

Sibal, Jose Agaton R. Philippine Labor Jurisprudence and Practice. 5th ed. Central Lawbook Publishing, 1997.