Cita APA (7th ed.)

De Guzman, I. A., & Juadiong, L. L. (2008). Determinants of productivity among senior citizens in Marikina City. Journal of the Philippine Association for Technology in Home Economics in State Colleges and Universities, Inc..

Cita Chicago (17th ed.)

De Guzman, Ines A., i Lilian L. Juadiong. "Determinants of Productivity Among Senior Citizens in Marikina City." Journal of the Philippine Association for Technology in Home Economics in State Colleges and Universities, Inc. 2008.

Cita MLA (9th ed.)

De Guzman, Ines A., i Lilian L. Juadiong. "Determinants of Productivity Among Senior Citizens in Marikina City." Journal of the Philippine Association for Technology in Home Economics in State Colleges and Universities, Inc., 2008.