Applied science -- See Technology --headings beginning with the words Technical and Technological; and subdivision Technology under individual wars, e.g. World War, 1939-1945--Technology
Appreciation of art -- See Art appreciation --subdivision Appreciation under individual art forms and headings for national or ethnic art, e.g. Art, Italian--Appreciation
Appropriate technologies -- See Appropriate technology --subdivision Appropriate technology under types of industries, e.g. Construction industry--Appropriate technology
Appropriations and expenditures -- See Expenditures, Public --subdivision Appropriations and expenditures under names of countries, cities, etc., and under names of individual government agencies
Aptitude tests -- See Ability Testing --subdivision Ability testing under topical headings, and subdivision Testing under phrase headings for types of ability for discussions of tests of native aptitude or acquired proficiency in a particular field
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Aquaculture -- See also the narrower term Fish culture
