Lua APA (7ú heag.)

Foster, C. R. (1961). Articles on compaction. National Bituminous Concrete Association.

Lua i Stíl Chicago (17ú heag.)

Foster, Charles R. Articles on Compaction. [College Station, Tex.]: National Bituminous Concrete Association, 1961.

Lua MLA (8ú heag.)

Foster, Charles R. Articles on Compaction. National Bituminous Concrete Association, 1961.

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