Philippine Industrial Relations Society & Sibal, J. . V. (2012). Sustainable employment relationships: Book 2. Central Book Supply.
Citace podle Chicago (17th ed.)Philippine Industrial Relations Society a Jorge V. Sibal. Sustainable Employment Relationships: Book 2. Quezon City: Central Book Supply, 2012.
Citace podle MLA (9th ed.)Philippine Industrial Relations Society a Jorge V. Sibal. Sustainable Employment Relationships: Book 2. Central Book Supply, 2012.
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