Cita APA (7th ed.)

Artiaga, S. Engineering in the Philippines prior to the Spanish conquest. Unitas..

Cita Chicago (17th ed.)

Artiaga, Santiago. "Engineering in the Philippines Prior to the Spanish Conquest." Unitas. .

Cita MLA (9th ed.)

Artiaga, Santiago. "Engineering in the Philippines Prior to the Spanish Conquest." Unitas., .