Here are entered works on the modern means of mass communication. Works on the communications industries treated collectively are entered under Communication and traffic. Works on human communication, including both the primary techniques of language, pictures, etc. and the secondary techniques, such as the press and radio, are entered under Communication. --subdivision In mass media under names of individual persons, families, corporate bodies, and countries, cities, etc., and under names of deities, mythological or legendary figures, and fictitious characters; and headings of the type [topic] in mass media, e.g. Alcoholism in mass media
--subdivision Press coverage under names of countries, cities, etc. and individual corporate bodies and under classes of persons, ethnic groups, individual events, and topical headings
Here are entered works on plant growing media for potted plants. Works on growing media which include both artificial media and natural soils are entered under Plant growing media. Works on growing media which do not contain natural soils are entered under Plant growing media, Artificial. Works on natural soils are entered under Soils.
Here are entered works on specialists in the study of the Middle Ages. Works on scholars who lived in the Middle Ages are entered under Scholars, Medieval.
