Gaya APA

Franke, E.. (1981). Point Pressure versus Length and Diameter of Piles . : s.n..

Gaya Chicago

Franke, E.. Point Pressure versus Length and Diameter of Piles. : s.n., 1981. Computer Software.

Gaya MLA

Franke, E.. Point Pressure versus Length and Diameter of Piles. : s.n., 1981. Computer Software.

Gaya Turabian

Franke, E.. Point Pressure versus Length and Diameter of Piles. : s.n., 1981. Computer Software.