Aben, E. L. (1997). Staggered work hours proposed. Manila Bulletin.
Chicagoスタイル(17版)引用形式Aben, Elena L. "Staggered Work Hours Proposed." Manila Bulletin 1997.
MLA(9版)引用形式Aben, Elena L. "Staggered Work Hours Proposed." Manila Bulletin, 1997.
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