Velasco, M. T. H., Sison, J. C., Moran, A. G., & Flor, A. G. (2005). Communication of scientific and technical information. University of the Philippines Open University.
Chicago-viite (17. p.)Velasco, Ma. Theresa H., Josephine C. Sison, Antonio G. Moran, ja Alexander G. Flor. Communication of Scientific and Technical Information. Quezon City, Philippines: University of the Philippines Open University, 2005.
MLA-viite (9. p.)Velasco, Ma. Theresa H., et al. Communication of Scientific and Technical Information. University of the Philippines Open University, 2005.
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