There are several accepted citation styles/formats for research papers in computer science. For general guidance, see the ODU Libraries guide to citing sources (linked below). If you're unsure, ask your professor which style s/he prefers. If preparing a manuscript for submission to a specific journal, consult the journal's guidelines for formatting and style.
Association for Computing Machinery:
Chicago Manual of Style:
Council of Science Editors:
Institute of Electrical and Electronics Engineers:
IEEE Computer Society Resources:
IEEE General Resources: