http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Problem-solving in conservation biology and wildlife management
exercises for class,field, and laboratory
James P. Gibbs, Malcolm L. Hunter, Eleanor J. Sterling.
Περιλαμβάνει βιβλιογραφικές παραπομπές και ευρετήριο.