Kaighn, R. P. (1957). Flexible Retirement. Evolving Policies and Programs for Industry and Labor.
シカゴスタイル引用形Kaighn, Raymond P. Flexible Retirement. Evolving Policies and Programs for Industry and Labor. 1957.
MLA引用形式Kaighn, Raymond P. Flexible Retirement. Evolving Policies and Programs for Industry and Labor. 1957.
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