APA citiranje

Emil Raymond Riegel. (1949). Industrial chemistry: An elementary treatise for the student and general reader. New York: Reinhold.

Trích dẫn kiểu Chicago

Emil Raymond Riegel. Industrial Chemistry: An Elementary Treatise for the Student and General Reader. New York: Reinhold, 1949.

MLA citiranje

Emil Raymond Riegel. Industrial Chemistry: An Elementary Treatise for the Student and General Reader. New York: Reinhold, 1949.