Dyfyniad APA

Wohlbier, R. H. (1987). Bulk port development, design and operation. Trans tech.

Dyfyniad Arddull Chicago

Wohlbier, Reinhard H. Bulk Port Development, Design and Operation. G D R: Trans tech, 1987.

Dyfyniad MLA

Wohlbier, Reinhard H. Bulk Port Development, Design and Operation. Trans tech, 1987.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.