APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (9th ed.) Citation

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

Warning: These citations may not always be 100% accurate.