Gaya APA

Shurig, D.G.. (1978). Field identification of soils and aggregates for county roads . : TRB.

Gaya Chicago

Shurig, D.G.. Field identification of soils and aggregates for county roads. : TRB, 1978. Computer Software.

Gaya MLA

Shurig, D.G.. Field identification of soils and aggregates for county roads. : TRB, 1978. Computer Software.

Gaya Turabian

Shurig, D.G.. Field identification of soils and aggregates for county roads. : TRB, 1978. Computer Software.