Gaya APA

Sampling of soil and rock. (1970). : ASTM.

Gaya Chicago

Sampling of soil and rock. . : ASTM, 1970. Filmstrip.

Gaya MLA

Sampling of soil and rock. . : ASTM, 1970. Filmstrip.

Gaya Turabian

Sampling of soil and rock. : ASTM, 1970. Filmstrip.