APA

Szyfres P. N. A. a. B., Szyfres B. & Pan American Sanitary Bureau. (1987). Zoonoses and communicable diseases common to man and animals. Washington, D.C., U.S.A: Pan American Health Organization, Pan American Sanitary Bureau, Regional Office of the World Health Organization.

Chicago

Szyfres Pedro N Acha and Boris, Szyfres Boris and Pan American Sanitary Bureau. 1987. Zoonoses and communicable diseases common to man and animals. Washington, D.C., U.S.A: Pan American Health Organization, Pan American Sanitary Bureau, Regional Office of the World Health Organization.

Harvard

Szyfres P. N. A. a. B., Szyfres B. and Pan American Sanitary Bureau. (1987). Zoonoses and communicable diseases common to man and animals. Washington, D.C., U.S.A: Pan American Health Organization, Pan American Sanitary Bureau, Regional Office of the World Health Organization.

MLA

Szyfres Pedro N Acha and Boris, Szyfres Boris and Pan American Sanitary Bureau. Zoonoses and communicable diseases common to man and animals. Washington, D.C., U.S.A: Pan American Health Organization, Pan American Sanitary Bureau, Regional Office of the World Health Organization. 1987.