Proceedings :
Proceedings : International Conference on the Application of Vaccines against Viral, Rickettsial, and Bacterial Diseases of Man, 14-18 December 1970.
- Washington, D.C. : Pan American Health Organization, 1971.
- 662 p.
- Scientific publication (Pan American Health Organization) ; no. 226 .
eng.
Vaccination--congresses.
Vaccines--congresses.
Communicable disease control--congresses.
QW 806
eng.
Vaccination--congresses.
Vaccines--congresses.
Communicable disease control--congresses.
QW 806