Gaya APA

Jordahl, , P, R. (1992). Variability in Measured Deflections and Backcalculated Moduli for the Strategic Highway Research Program Southern Region . : s.n..

Gaya MLA

Jordahl, , Peter, R.. "Variability in Measured Deflections and Backcalculated Moduli for the Strategic Highway Research Program Southern Region". : s.n., 1992. Computer Software.