Castro, N. M., & Smith, P. C. (1974). Assortative mating on father's occupation: Philippines, 1968. s.n.].
Chicago Style (17th ed.) CitationCastro, Nilda M., and Peter Colin Smith. Assortative Mating on Father's Occupation: Philippines, 1968. [S.l: s.n.], 1974.
MLA (9th ed.) CitationCastro, Nilda M., and Peter Colin Smith. Assortative Mating on Father's Occupation: Philippines, 1968. s.n.], 1974.
Warning: These citations may not always be 100% accurate.