Pollution of waters of the world.
Contributors: Heyerdahl, Thor, 1914-; George, David, Dr.; Wheeler, Alwyne, 1929-
Series: Life on this earth
Publisher: Seminar Cassettes
Published: 1972
Place of publication: London
Language: eng
Number of pages: 57
Notes: Speakers Thor Heyerdahl Dr. David George Alwyne Wheeler.