Gaya APA

Wiryomartono, Suwarno. (1976). Timber for low cost bridges . : Departemen PU.

Gaya Chicago

Wiryomartono, Suwarno. Timber for low cost bridges. : Departemen PU, 1976. Computer Software.

Gaya MLA

Wiryomartono, Suwarno. Timber for low cost bridges. : Departemen PU, 1976. Computer Software.

Gaya Turabian

Wiryomartono, Suwarno. Timber for low cost bridges. : Departemen PU, 1976. Computer Software.