APA

Gülmezoglu A. M., Villar J., Grimshaw J., Piaggio G., Lumbiganon P. & Langer A. (20060412). Cluster randomized trial of an active, multifaceted information dissemination intervention based on The WHO Reproductive health library to change obstetric practices: methods and design issues [ISRCTN14055385]. : BMC medical research methodology.

Chicago

Gülmezoglu A Metin, Villar José, Grimshaw Jeremy, Piaggio Gilda, Lumbiganon Pisake and Langer Ana. 20060412. Cluster randomized trial of an active, multifaceted information dissemination intervention based on The WHO Reproductive health library to change obstetric practices: methods and design issues [ISRCTN14055385]. : BMC medical research methodology.

Harvard

Gülmezoglu A. M., Villar J., Grimshaw J., Piaggio G., Lumbiganon P. and Langer A. (20060412). Cluster randomized trial of an active, multifaceted information dissemination intervention based on The WHO Reproductive health library to change obstetric practices: methods and design issues [ISRCTN14055385]. : BMC medical research methodology.

MLA

Gülmezoglu A Metin, Villar José, Grimshaw Jeremy, Piaggio Gilda, Lumbiganon Pisake and Langer Ana. Cluster randomized trial of an active, multifaceted information dissemination intervention based on The WHO Reproductive health library to change obstetric practices: methods and design issues [ISRCTN14055385]. : BMC medical research methodology. 20060412.