APA

Imrie J., Stephenson J. M., Cowan F. M., Wanigaratne S., Billington A. J., Copas A. J., French L., French P. D. & Johnson A. M. (20010712). A cognitive behavioural intervention to reduce sexually transmitted infections among gay men: randomised trial. : BMJ (Clinical research ed.).

Chicago

Imrie J, Stephenson J M, Cowan F M, Wanigaratne S, Billington A J, Copas A J, French L, French P D and Johnson A M. 20010712. A cognitive behavioural intervention to reduce sexually transmitted infections among gay men: randomised trial. : BMJ (Clinical research ed.).

Harvard

Imrie J., Stephenson J. M., Cowan F. M., Wanigaratne S., Billington A. J., Copas A. J., French L., French P. D. and Johnson A. M. (20010712). A cognitive behavioural intervention to reduce sexually transmitted infections among gay men: randomised trial. : BMJ (Clinical research ed.).

MLA

Imrie J, Stephenson J M, Cowan F M, Wanigaratne S, Billington A J, Copas A J, French L, French P D and Johnson A M. A cognitive behavioural intervention to reduce sexually transmitted infections among gay men: randomised trial. : BMJ (Clinical research ed.). 20010712.