APA
Pan American Health Organization, . (1967). First international conference on vaccines against viral and rickettsial diseases of man papers presentesd and discussion held washigton, Dandcand,7-11 November 1966: scientific publication no 147. Washington: Pan American Health Organization.
Chicago
Pan American Health Organization, . 1967. First international conference on vaccines against viral and rickettsial diseases of man papers presentesd and discussion held washigton, Dandcand,7-11 November 1966: scientific publication no 147. Washington: Pan American Health Organization.
Harvard
Pan American Health Organization, . (1967). First international conference on vaccines against viral and rickettsial diseases of man papers presentesd and discussion held washigton, Dandcand,7-11 November 1966: scientific publication no 147. Washington: Pan American Health Organization.
MLA
Pan American Health Organization, . First international conference on vaccines against viral and rickettsial diseases of man papers presentesd and discussion held washigton, Dandcand,7-11 November 1966: scientific publication no 147. Washington: Pan American Health Organization. 1967.