Cita APA

Alejandro, R. G., Vallejo, R. M., & Santiago, A. V. (2005). Selyo: Philippine history in postage stamps. Anvil Pub.

Citación estilo Chicago

Alejandro, Reynaldo Gamboa, Rosa Menguito Vallejo, and Arminda Vallejo Santiago. Selyo: Philippine History in Postage Stamps. Pasig City: Anvil Pub, 2005.

Cita MLA

Alejandro, Reynaldo Gamboa, et al. Selyo: Philippine History in Postage Stamps. Anvil Pub, 2005.