Bernt Zeitzschel Biology of the Indian ocean - London Chapman and hall Ltd 1973 - 549p Bernt Zeitzschel: Biology of the Indian ocean. London. Chapman and hall Ltd, 1973. 0-412-12070-4--(574.52636ZEI) ENGLISH ISBN: 0-412-12070-4 Dewey Class. No.: 574.52636 / ZEI