Books at the Department of Earth Sciences - Use this link if you only want to find books from the Department of Earth Sciences
Newer books from 1990- are found in the library. Older books (-1989) are in the closed archive, where you have to order them from by sending me an e-mail kd.ua.oeg|ilt#kd.ua.oeg|ilt
Books in The State and University Library Catalog - including books from all the libraries at the University of Aarhus
Permanent loan from The State and University Library to The Dept. of Earth Sciences is possible, please contact the library for requests: kd.ua.oeg|ilt#kd.ua.oeg|ilt
bibliotek.dk
- A free service where you can see what has been published in Denmark and the holdings of Danish libraries. You can borrow the items from revevant libraries, but you have to be a member.
ebrary 
- electronic books from Academic Complete, a growing eBook collection that spans all academic subject areas.
Google Bogsøgning 
Søg bøger hos boghandlere og på biblioteker: Danske bibliotekers bøger hentet fra bibliotek.dk og udenlandske bibliotekers bøger bl.a. Howard University, Oxford University, Universitetsbiblioteket i Lausanne og Det bayerske statsbibliotek.
Google Scholar - try it or read more here
Worldcat 
- the world's largest network of library content and services
