Cita APA

Sammon, W. L., & Kurkland, M. A. (1984). Business Competitor Intelligence. Ronald.

Citación estilo Chicago

Sammon, William L., y Mark A. Kurkland. Business Competitor Intelligence. New York: Ronald, 1984.

Cita MLA

Sammon, William L., y Mark A. Kurkland. Business Competitor Intelligence. Ronald, 1984.