Gaya APA

Morgenstern, N. R.. (1971). Comparative observations on the use of the Pitcher sampler in stiff clay . : ASTM.

Gaya Chicago

Morgenstern, N. R.. Comparative observations on the use of the Pitcher sampler in stiff clay. : ASTM, 1971. Computer Software.

Gaya MLA

Morgenstern, N. R.. Comparative observations on the use of the Pitcher sampler in stiff clay. : ASTM, 1971. Computer Software.

Gaya Turabian

Morgenstern, N. R.. Comparative observations on the use of the Pitcher sampler in stiff clay. : ASTM, 1971. Computer Software.