devel.module

<?php

  if (!module_exists('biblio') || !module_exists('libraries')) {
    return;
  }

  biblio_create_field('biblio_issued', 'biblio', 'book');
  biblio_create_field('biblio_abstract', 'biblio', 'book');
  biblio_create_field('biblio_image', 'biblio', 'book');
  biblio_create_field('biblio_pages', 'biblio', 'book');

  biblio_create_field('biblio_contributor', 'biblio', 'book');

  $biblio = biblio_create('book');
  $wrapper = entity_metadata_wrapper('biblio', $biblio);

  $wrapper->biblio_issued->set(time());
  $wrapper->biblio_abstract->set('This is the abstract!');
  $wrapper->biblio_pages->set('22-25');
  $wrapper->biblio_abstract->set('This is the Abstrcat');

  // Add contributor to collection.
  $biblio_contributor1 = biblio_contributor_create('Amitai', 'author');
  $biblio_contributor1->save();

  $biblio_contributor2 = biblio_contributor_create('Ferdi', 'editor');
  $biblio_contributor2->save();

  $wrapper->biblio_contributor[] = $biblio_contributor1;
  $wrapper->biblio_contributor[] = $biblio_contributor2;

  $biblio->title= 'TEST CITEPROC';
  $wrapper->save();

  dpm($biblio->getText('os_citeproc', array('style_name' => 'os-chicago-author-date')));