Gaya APA

Hanell, J. J.. (1981). Negative Skin Friction on Piles in Mexico City Clay . : s.n..

Gaya Chicago

Hanell, J. J.. Negative Skin Friction on Piles in Mexico City Clay. : s.n., 1981. Computer Software.

Gaya MLA

Hanell, J. J.. Negative Skin Friction on Piles in Mexico City Clay. : s.n., 1981. Computer Software.

Gaya Turabian

Hanell, J. J.. Negative Skin Friction on Piles in Mexico City Clay. : s.n., 1981. Computer Software.