APA-ийн эшлэл(7 дахь хэвлэлт)

Hoeffler, A., & Outram, V. (2008). Need, merit or self-interest: What determines the allocation of aid? University of Oxford.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Hoeffler, A., ба V. Outram. Need, Merit or Self-interest: What Determines the Allocation of Aid? University of Oxford, 2008.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Hoeffler, A., ба V. Outram. Need, Merit or Self-interest: What Determines the Allocation of Aid? University of Oxford, 2008.