Cita APA (7th ed.)

University of the Philippines Diliman. College of Engineering, Matias, A., Reyes, G., Banggati, J., & Tupas, M. E. (2013). Free and Open Source Software for Geospatial (FOSS4G). DZUP.

Cita Chicago (17th ed.)

University of the Philippines Diliman. College of Engineering, Aura Matias, Gerard Reyes, Julius Banggati, i Mark Edwin Tupas. Free and Open Source Software for Geospatial (FOSS4G). Quezon City: DZUP, 2013.

Cita MLA (9th ed.)

University of the Philippines Diliman. College of Engineering, et al. Free and Open Source Software for Geospatial (FOSS4G). DZUP, 2013.