Gaya APA

Podnieks, E. R.. (1976). Four Factors Influencing Observed Rock Properties . : ASTM.

Gaya Chicago

Podnieks, E. R.. Four Factors Influencing Observed Rock Properties. : ASTM, 1976. Computer Software.

Gaya MLA

Podnieks, E. R.. Four Factors Influencing Observed Rock Properties. : ASTM, 1976. Computer Software.

Gaya Turabian

Podnieks, E. R.. Four Factors Influencing Observed Rock Properties. : ASTM, 1976. Computer Software.