http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
McGraw-Hill encyclopedia of environmental science
"Some of the material in this volume has been published previously in the McGraw-Hill encyclopedia of science and technology, fourth edition."
Περιέχει βιβλιογραφικές παραπομπές και ευρετήριο