Cita APA (7th ed.)
Brunner, K. (1927). English commercial Correspondence: A handbook for students.
Cita Chicago (17th ed.)
Brunner, Karl. English Commercial Correspondence: A Handbook for Students. Leipzig, Wien, 1927.
Cita MLA (9th ed.)
Brunner, Karl. English Commercial Correspondence: A Handbook for Students. 1927.
Atenció: Aquestes cites poden no estar 100% correctes.