APA-ийн эшлэл(7 дахь хэвлэлт)

Bluffstone, R., & Köhlin, G. (2011). Agricultural investment and productivity: Building sustainability in East Africa. RFF Press.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Bluffstone, Randall, ба Gunnar Köhlin. Agricultural Investment and Productivity: Building Sustainability in East Africa. Washington, D.C: RFF Press, 2011.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Bluffstone, Randall, ба Gunnar Köhlin. Agricultural Investment and Productivity: Building Sustainability in East Africa. RFF Press, 2011.