APA aipamena

Frey, H. A., Tuuli, M. G., England, S. K., Roehl, K. A., Odibo, A. O., Macones, G. A., & Cahill, A. G. (2014). Factors Associated with Higher Oxytocin Requirements in Labor. J Matern Fetal Neonatal Med.

Chicago Style aipamena

Frey, Heather A., Methodius G. Tuuli, Sarah K. England, Kimberly A. Roehl, Anthony O. Odibo, George A. Macones, and Alison G. Cahill. "Factors Associated With Higher Oxytocin Requirements in Labor." J Matern Fetal Neonatal Med 2014.

MLA aipamena

Frey, Heather A., et al. "Factors Associated With Higher Oxytocin Requirements in Labor." J Matern Fetal Neonatal Med 2014.