APA-ийн эшлэл(7 дахь хэвлэлт)

Kingdon, G., & Knight, J. (1999). Unemployment and wages in South Africa: A spatial approach. University of Oxford.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Kingdon, G., ба J. Knight. Unemployment and Wages in South Africa: A Spatial Approach. University of Oxford, 1999.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Kingdon, G., ба J. Knight. Unemployment and Wages in South Africa: A Spatial Approach. University of Oxford, 1999.