APA

Karchmer S., Armas-Dominguez J., Chávez-Azulea J., Shor-Pinsker V. & MacGregor C. (19770630). Studies on maternal mortality in Mexico. : International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics.

Chicago

Karchmer S, Armas-Dominguez J, Chávez-Azulea J, Shor-Pinsker V and MacGregor C. 19770630. Studies on maternal mortality in Mexico. : International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics.

Harvard

Karchmer S., Armas-Dominguez J., Chávez-Azulea J., Shor-Pinsker V. and MacGregor C. (19770630). Studies on maternal mortality in Mexico. : International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics.

MLA

Karchmer S, Armas-Dominguez J, Chávez-Azulea J, Shor-Pinsker V and MacGregor C. Studies on maternal mortality in Mexico. : International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics. 19770630.