Title: Bottom investigations.
Publisher: Elanders Boktryckeri Aktiebolag,
Year: 1955
Contents: Fasc. 1. no. 1. Sound explarations, by Waloddi Weibull.--no. 2. Deep-sea coring, by Börje Kullenberg, 1955. Fasc. 2. no. 3. Echo soundings, by F.F. Koczy, 1956.