Cita APA

Grimwade, J., Walker, D., & Wood, C. (1971). Morphine and the fetal heart rate.

Chicago Style Citation

Grimwade, J., D. Walker, i C. Wood. Morphine and the Fetal Heart Rate. 1971.

Cita MLA

Grimwade, J., D. Walker, i C. Wood. Morphine and the Fetal Heart Rate. 1971.