American Philosophical Society, Philadelphia. (1967). Population problems: Papers read at the autumn general meeting, November 11, 1966. [s.n.].
Chicago Style (17th ed.) CitationAmerican Philosophical Society, Philadelphia. Population Problems: Papers Read at the Autumn General Meeting, November 11, 1966. Philadelphia: [s.n.], 1967.
MLA (9th ed.) CitationAmerican Philosophical Society, Philadelphia. Population Problems: Papers Read at the Autumn General Meeting, November 11, 1966. [s.n.], 1967.
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