APA (7th ed.) Citation

I N Korotkykh & O S Kryshtopina. (2015). Pregnancy under control. Modern methods of determining ovulation. IP Berlin A.V..

Chicago Style (17th ed.) Citation

I N Korotkykh and O S Kryshtopina. Pregnancy Under Control. Modern Methods of Determining Ovulation. IP Berlin A.V., 2015.

MLA (9th ed.) Citation

I N Korotkykh and O S Kryshtopina. Pregnancy Under Control. Modern Methods of Determining Ovulation. IP Berlin A.V., 2015.

Warning: These citations may not always be 100% accurate.