APA

United States, . (1978). Criminal justice audiovisual materials directory. Washington: Law Enforcement Assistance Administration, U.S. Dept. of Justice.

Chicago

United States, . 1978. Criminal justice audiovisual materials directory. Washington: Law Enforcement Assistance Administration, U.S. Dept. of Justice.

Harvard

United States, . (1978). Criminal justice audiovisual materials directory. Washington: Law Enforcement Assistance Administration, U.S. Dept. of Justice.

MLA

United States, . Criminal justice audiovisual materials directory. Washington: Law Enforcement Assistance Administration, U.S. Dept. of Justice. 1978.