Cita APA (7a ed.)

(1970). Communicable disease and immunization programs. Hearing, Ninety-first Congress, second session ... March 13, 1970.

Cita Chicago Style (17a ed.)

Communicable Disease and Immunization Programs. Hearing, Ninety-first Congress, Second Session ... March 13, 1970. 1970.

Cita MLA (9a ed.)

Communicable Disease and Immunization Programs. Hearing, Ninety-first Congress, Second Session ... March 13, 1970. 1970.

Precaución: Estas citas no son 100% exactas.