Gatchalian, J. C., & Gatchalian, M. M. (1987). The nature, consequences and prospects of underground employment in the four major cities of Metro Manila. s.n.].
Citace podle Chicago (17th ed.)Gatchalian, Jose C., a Miflora M. Gatchalian. The Nature, Consequences and Prospects of Underground Employment in the Four Major Cities of Metro Manila. [Quezon City: s.n.], 1987.
Citace podle MLA (9th ed.)Gatchalian, Jose C., a Miflora M. Gatchalian. The Nature, Consequences and Prospects of Underground Employment in the Four Major Cities of Metro Manila. s.n.], 1987.
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