Consumers can look up any ISSN at WorldCat.org, according to the U.S. ISSN Center. The center assigns International Standard Serial Numbers to every serial printed in the United States. More »

Generally speaking, phone numbers for magazines and similar publications can be found on the page that lists the publishers, editors, advertising staff and contributors of that particular magazine. A publication's websit... More »

www.reference.com Art & Literature Literature Magazines & Newspapers

While national magazines are not required to publish their circulation numbers, most do anyway — especially the larger periodicals dependent upon advertising revenue. This is because advertisers typically favor periodica... More »

www.reference.com Art & Literature Literature Magazines & Newspapers

Individuals and businesses can apply for D-U-N-S numbers at the Dun & Bradstreet website, DNB.com. Dun & Bradstreet provides the number without charge. Generally, it takes approximately 20 business days for businesses ba... More »

www.reference.com Business & Finance Business Resources

To find business phone numbers in Vancouver, visit WhitePages.ca, YellowPages.ca, Canpages.ca or Canada411.ca. These websites list businesses by category to help visitors find the business they are looking for. Additiona... More »

www.reference.com Business & Finance Business Resources

A stock keeping unit, or SKU, is a distinct combination of letters and numbers assigned to a particular product sold by a business. The primary purpose a stock keeping unit is to allow effective inventory tracking and to... More »

www.reference.com Business & Finance Business Resources

To find fax numbers for businesses, type the business name into an online phone directory such as White Pages or Yellow Pages. Scroll through the business information and select the number listed as "fax." More »