Cita APA (7th ed.)

Valenzuela, E. A. P., & Balderama, H. S. C. (2006). Directory of lifelong learning providers in the Philippines: 2006. Unesco National Commission of the Philippines.

Cita Chicago (17th ed.)

Valenzuela, Ethel Agnes Pascua, i Helen Sophia Chua Balderama. Directory of Lifelong Learning Providers in the Philippines: 2006. Pasay City: Unesco National Commission of the Philippines, 2006.

Cita MLA (9th ed.)

Valenzuela, Ethel Agnes Pascua, i Helen Sophia Chua Balderama. Directory of Lifelong Learning Providers in the Philippines: 2006. Unesco National Commission of the Philippines, 2006.