Pettersson, Hans.
Ocean floor / Textual Documents Hans Pettersson. - New York : Hafner Publishing Company, 1969. - xv, 181 p., maps, figures.
Physical and Dynamic Geology Ocean
551.4608 / PET
Ocean floor / Textual Documents Hans Pettersson. - New York : Hafner Publishing Company, 1969. - xv, 181 p., maps, figures.
Physical and Dynamic Geology Ocean
551.4608 / PET