Não informado. (1970). Journal of Traffic Safety Education. California Driver Education Association.
Citação do estilo Chicago (17ª ed.)Não informado. Journal of Traffic Safety Education. Long Beach, Calif: California Driver Education Association, 1970.
Citação MLA (8ª ed.)Não informado. Journal of Traffic Safety Education. California Driver Education Association, 1970.
Atenció: Aquestes cites poden no estar 100% correctes.