APA-čujuhus (7. p.)
Rogers, C., & Sytsma, B. (1999). World vision security manual: Safety awareness for aid workers. MARC Publications.
Chicago-čujuhus (17. p.)
Rogers, Charles, juo Brian Sytsma. World Vision Security Manual: Safety Awareness for Aid Workers. Switzerland: MARC Publications, 1999.
MLA-čujuhus (9. p.)
Rogers, Charles, juo Brian Sytsma. World Vision Security Manual: Safety Awareness for Aid Workers. MARC Publications, 1999.
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