To unplumbed depths
By: translated by Ewald Osers.
Publisher: Harrap
Published: 1972
Place of publication: London
Language: eng
Number of pages: 266
Subjects: Hass, Hans.; Skin diving.; Marine biology.
Notes: Bibliography: p. 266.
Translation of In unberührte Tiefen.
American ed. published in 1973 under title: Challenging the deep.