Nguiagain, T. (1986). Trends and patterns of internal migration in the Philippine 1970-1980. UPSEC.
Chicago-viite (17. p.)Nguiagain, Titus. Trends and Patterns of Internal Migration in the Philippine 1970-1980. Diliman, Q.C: UPSEC, 1986.
MLA-viite (9. p.)Nguiagain, Titus. Trends and Patterns of Internal Migration in the Philippine 1970-1980. UPSEC, 1986.
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