TopReference.com offer reference website links to browse for education, libraries, dictionaries, colleges, universities, k-12, language schools, book and magazines.

Professional and Technical

Consumer reports and information.
http://www.aviationconsumer.com/
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Technical books and documents in stock for immediate worldwide shipment.
http://www.brownbookshop.com/
PageRank: Not available
Professional computer service. Ask the computer service site. Looking for a professional computer service in the UK, search this site.
http://www.computerservicesguide.com/
PageRank: Not available
Books and contracts on Architecture, construction, civil engineering, planning and surveying. Construction Books puts the bookshop online to your desktop.
http://www.constructionbooks.net/
PageRank: Not available
Reference books, plus videos, software and study guides for the construction industry.
http://www.contractor-books.com/
PageRank: Not available
Books and learning resources for midwifery and parenting. Workbooks, editable practice guidelines, charts, forms, and soon online courses.
http://www.eagletreepress.com/
PageRank: Not available
Engineering industry standards and technical books from many organizations.
http://www.techstreet.com/
PageRank: Not available
Handbook on how to write winning essays, with advice on editing, grammar, spelling, and revision.
http://www.cooperhill.com/
PageRank: Not available
Books and journals direct from the publisher.
http://www.worldscientific.com/
PageRank: Not available
How-to-write books for creative writers, books for writing crime, romance, fantasy, travel, editing.
http://www.writersbookcase.com/
PageRank: Not available