Cita APA (7th ed.)

Albecea, Z. V., & Gironella, A. I. N. (1996). Profile and manpower contribution to production of the special sectors of the Philippine population: Volume 4, the senior citizens. National Statistics Office.

Cita Chicago (17th ed.)

Albecea, Zita VJ, i Ann Inez N. Gironella. Profile and Manpower Contribution to Production of the Special Sectors of the Philippine Population: Volume 4, the Senior Citizens. Manila: National Statistics Office, 1996.

Cita MLA (9th ed.)

Albecea, Zita VJ, i Ann Inez N. Gironella. Profile and Manpower Contribution to Production of the Special Sectors of the Philippine Population: Volume 4, the Senior Citizens. National Statistics Office, 1996.