APA সাইটেশন

Kull, M., Kallikorm, R., Tamm, A., & Lember, M. (2009). Seasonal variance of 25-(OH) vitamin D in the general population of Estonia, a Northern European country. BioMed Central.

শিকাগো স্টাইলে সাইটেশন

Kull, Mart, Riina Kallikorm, Anu Tamm, এবং Margus Lember. Seasonal Variance of 25-(OH) Vitamin D in the General Population of Estonia, a Northern European Country. BioMed Central, 2009.

এমএলএ সাইটেশন

Kull, Mart, Riina Kallikorm, Anu Tamm, এবং Margus Lember. Seasonal Variance of 25-(OH) Vitamin D in the General Population of Estonia, a Northern European Country. BioMed Central, 2009.