Research indexNotes1 Jan 1977NobleIDark:/48914/w1/20260515/D5B05A5BDOI10.5040/9781350054752.0009Notes1977 · SubscriptionNobleIDark:/48914/w1/20260515/D5B05A5BDOI10.5040/9781350054752.0009ReadRead at the publisherSaveCiteAdd to literature reviewPaywalledThe full text is at the publisherOpen it at the publisher to read it.Read at the publisherDiscussionAdd to the discussionTopicsGeographyRelated papersMoreDetailsPublished, issue, languageSuggest a correction or report