Keywords: Heterooligomers.jpg en wikibooks Adrignola CommonsHelper 2007-04-11 Poulamibarman wikibooks en b English Wikibooks Poulamibarman Original upload log page en wikibooks Heterooligomers jpg 2007-04-11 20 11 Poulamibarman 500×592× 92068 bytes <nowiki></nowiki> Oligomers |