Gaya APA

Steedman, , R, S. (1982). Centrifugal Testing of Microconcrete Retaining Walls Subjected to Base Shaking . : s.n..

Gaya MLA

Steedman, , R., S.. "Centrifugal Testing of Microconcrete Retaining Walls Subjected to Base Shaking". : s.n., 1982. Text.