Cita APA (7a ed.)
Hill and Knowlton International. (1967). Handbook on international public relations.
Cita estilo Chicago (17a ed.)
Hill and Knowlton International. Handbook on International Public Relations. 1967.
Cita MLA (9a ed.)
Hill and Knowlton International. Handbook on International Public Relations. 1967.
Precaución: Estas citas no son 100% exactas.