APA-ийн эшлэл(7 дахь хэвлэлт)

Holtz, W. G. (1969). Soil as an engineering material. United States Department of the Interior.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Holtz, Wesley G. Soil as an Engineering Material. Washington, D.C: United States Department of the Interior, 1969.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Holtz, Wesley G. Soil as an Engineering Material. United States Department of the Interior, 1969.