APA-referens (7:e uppl.)

Castroverde, J. M., Castroverde, Y. L., & Lirag, E. S. (2011). Cultural environment and learning achievement of pupils in the division of city schools of the City of Naga. SedVitae.

Chicago-referens (17:e uppl.)

Castroverde, Jacob M., Yolanda L. Castroverde, och Emma S. Lirag. "Cultural Environment and Learning Achievement of Pupils in the Division of City Schools of the City of Naga." SedVitae 2011.

MLA-referens (9:e uppl.)

Castroverde, Jacob M., et al. "Cultural Environment and Learning Achievement of Pupils in the Division of City Schools of the City of Naga." SedVitae, 2011.