APA način citiranja

Newton, J., Illingworth, R., Elias, J., & McEwan, J. (1977). Continuous intrauterine copper contraception for 3 years: Comparison of replacement at 2 years with continuation of use.

Čikaški stil citiranja

Newton, J., R. Illingworth, J. Elias, i J. McEwan. Continuous Intrauterine Copper Contraception for 3 Years: Comparison of Replacement At 2 Years With Continuation of Use. 1977.

MLA način citiranja

Newton, J., R. Illingworth, J. Elias, i J. McEwan. Continuous Intrauterine Copper Contraception for 3 Years: Comparison of Replacement At 2 Years With Continuation of Use. 1977.