Gaya APA

Roston, J.P.. (1976). NCHRP 172. Density standards for field compaction of granular bases and subases . : TRB.

Gaya Chicago

Roston, J.P.. NCHRP 172. Density standards for field compaction of granular bases and subases. : TRB, 1976. Chart.

Gaya MLA

Roston, J.P.. NCHRP 172. Density standards for field compaction of granular bases and subases. : TRB, 1976. Chart.

Gaya Turabian

Roston, J.P.. NCHRP 172. Density standards for field compaction of granular bases and subases. : TRB, 1976. Chart.