Abella, M. I., & Mangahas, M. A. A. (1997). Sending workers abroad: A manual for low- and middle- income countries. International Labour Office.
Chicago Style (17. basım) AtıfAbella, Manolo I., ve Ma. Alcestis Abrera- Mangahas. Sending Workers Abroad: A Manual for Low- and Middle- Income Countries. Geneva, Switzerland: International Labour Office, 1997.
MLA (9th ed.) AtıfAbella, Manolo I., ve Ma. Alcestis Abrera- Mangahas. Sending Workers Abroad: A Manual for Low- and Middle- Income Countries. International Labour Office, 1997.
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