Carl Robert Byoir (1886 — 3 February 1957) was an influential practitioner in the field of public relations. He created and organized one of the world's largest public relations firms in 1930.
Carl Robert Byoir (1886 — 3 February 1957) was an influential practitioner in the field of public relations. He created and organized one of the world's largest public relations firms in 1930. (en)
Carl Robert Byoir (1886 — 3 February 1957) was an influential practitioner in the field of public relations. He created and organized one of the world's largest public relations firms in 1930. (en)