APA (7th ed.) Citation

Navarro, J., Vivar, T., Viloria, E., Sobritchea, G. R., & Quilop, M. P. (1986). World history. Vibal Publishing House, Inc.

Chicago Style (17th ed.) Citation

Navarro, Josefina, Teofista Vivar, Evelina Viloria, Gertrudes R. Sobritchea, and Mary Peter Quilop. World History. Manila: Vibal Publishing House, Inc, 1986.

MLA (9th ed.) Citation

Navarro, Josefina, et al. World History. Vibal Publishing House, Inc, 1986.

Warning: These citations may not always be 100% accurate.