Cita APA (7a ed.)

Duffy, E. (1971). The effect of changes in the state abortion laws. Public Health Service publication.

Cita Chicago Style (17a ed.)

Duffy, Edward. "The Effect of Changes in the State Abortion Laws." Public Health Service Publication 1971.

Cita MLA (9a ed.)

Duffy, Edward. "The Effect of Changes in the State Abortion Laws." Public Health Service Publication, 1971.