APA (7th ed.) Citation

Levine, P. B., & Staiger, D. (2001). Abortion as insurance. National Bureau of Economic Research.

Chicago Style (17th ed.) Citation

Levine, Phillip B., and Douglas Staiger. Abortion as Insurance. Cambridge: National Bureau of Economic Research, 2001.

MLA (9th ed.) Citation

Levine, Phillip B., and Douglas Staiger. Abortion as Insurance. National Bureau of Economic Research, 2001.

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