Παραπομπή σε μορφή APA (7η εκδ.)

Olsén, M., Elden, H., Janson, E., Lilja, H., & Stener-Victorin, E. (2007). A comparison of high- versus low-intensity, high-frequency transcutaneous electric nerve stimulation for painful postpartum uterine contractions.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Olsén, M., H. Elden, E. Janson, H. Lilja, και E. Stener-Victorin. A Comparison of High- Versus Low-intensity, High-frequency Transcutaneous Electric Nerve Stimulation for Painful Postpartum Uterine Contractions. 2007.

Παραπομπή σε μορφή MLA (9th εκδ.)

Olsén, M., et al. A Comparison of High- Versus Low-intensity, High-frequency Transcutaneous Electric Nerve Stimulation for Painful Postpartum Uterine Contractions. 2007.