APA-ийн эшлэл(7 дахь хэвлэлт)

Lopes, J., & Hills, D. (2019). The axisymmetric frictional receding contact of a layer pressed against a half-space by a point force. Elsevier.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Lopes, JP, ба DA Hills. The Axisymmetric Frictional Receding Contact of a Layer Pressed Against a Half-space by a Point Force. Elsevier, 2019.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Lopes, JP, ба DA Hills. The Axisymmetric Frictional Receding Contact of a Layer Pressed Against a Half-space by a Point Force. Elsevier, 2019.