Smithsonian Institution. Interdisciplinary Communications Program & Somjit Supannatas. (1976). Cultural factors and population in developing countries. Interdisciplinary Communications Program, Smithsonian Institution.
Chicago-viite (17. p.)Smithsonian Institution. Interdisciplinary Communications Program ja Somjit Supannatas. Cultural Factors and Population in Developing Countries. Washington: Interdisciplinary Communications Program, Smithsonian Institution, 1976.
MLA-viite (9. p.)Smithsonian Institution. Interdisciplinary Communications Program ja Somjit Supannatas. Cultural Factors and Population in Developing Countries. Interdisciplinary Communications Program, Smithsonian Institution, 1976.
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