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600 Technology

610 Medicine & Health

611 Human Anatomy, Cytology, & Histology

612 Human Physiology

613 Personal Health & Safety

614 Incidence & Prevention of Disease

615 Pharmacology & Therapeutics

616 Diseases

617 Surgery & Related Medical Specialties

618 Gynecology, Obstetrics, Pediatrics, & Geriatrics

619 Unassigned

620 Engineering and Allied Operations

629 Other Branches of Engineering

629.2 Types of Vehicles

629.222 Passenger Automobiles

VIN Decoder – a free tool handy for researching used cars.

629.41 Space Flight, Engineering

NASA Image and Video Library – 140,000 photos, videos & audio files free to search and download.

630 Agriculture

640 Home & Family Management

641 Food & Drink

642 Meals & Table Service

643 Housing & Household Equipment

644 Household Utilities

645 Household Furnishings

646 Sewing, Clothing & Personal Living

647 Management of Public Households

648 Housekeeping

649 Child Rearing & Home Care of People

649.51 Children’s Activities and Recreation

101 Fun Things To Do with Kids This Summer

650 Management & Auxiliary Services

650.14 Job Hunting

Job Resources: CMRLS Virtual Reference

660 Chemical Engineering

670 Manufacturing

680 Manufacture for Specific Uses

690 Construction of Buildings[/vc_column_text][/vc_column][/vc_row]