HEATKEYS

Find what you want in a library near you with WorldCat, a global catalog of library collections.

AbeBooks is your source for Used, New, Rare and Out of print books. Find classic collectibles, rare signed editions, used textbooks, and inexpensive bestsellers from independent booksellers worldwide.

Eurofins Scientific is a leading international group of laboratories providing a range of testing and support services to the pharmaceutical, food, environmental and consumer products industries and to governments.

Providing researchers with access to millions of scientific documents from journals, books, series, protocols and reference works.

GlobalSpec is a search engine and information resource for the engineering, industrial and technical communities. We help you quickly find industrial parts, specifications and services.

LGInternational custom label manufacturer of product identification, components, membrane switches & security solutions, including CleanMark cleanroom labels.

Siemens is the world’s single-source leader of automation technology products for all industrial sectors. Learn more about our unique range of products and systems.

LibraryThing catalogs your books online, easily, quickly and for free.