Columbia subject headings:
Educational law and legislation--United States.
Students--Legal status, laws, etc.--United States.
Textbooks--Censorship--United States.
Textbooks--United States--Censorship.
Harvard subject headings:
Educational law and legislation--United States.
Students--Legal status, laws, etc.--United States
Textbooks--Censorship--United States.
Princeton subject headings:
Educational law and legislation--United States.
Students--Legal status, laws, etc.--United States.
Textbooks--Censorship--United States.