Manuel, B. B. (1976). A practical guide to methodology of research and thesis writing: Beinvenido B. Manuel, Paz C. Medel. GIC Enterprises & Co., Inc.
Chicago-referens (17:e uppl.)Manuel, Beinvenido B. A Practical Guide to Methodology of Research and Thesis Writing: Beinvenido B. Manuel, Paz C. Medel. Manila: GIC Enterprises & Co., Inc, 1976.
MLA-referens (9:e uppl.)Manuel, Beinvenido B. A Practical Guide to Methodology of Research and Thesis Writing: Beinvenido B. Manuel, Paz C. Medel. GIC Enterprises & Co., Inc, 1976.
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