APA-viite

Stewart, J. W., Alekel, D. L., Ritland, L. M., Van Loan, M., Gertz, E., & Genschel, U. (2009). Serum 25-hydroxyvitamin D is related to indicators of overall physical fitness in healthy postmenopausal women.

Chicago-tyylinen lähdeviittaus

Stewart, Jeanne W., D. Lee Alekel, Laura M. Ritland, Marta Van Loan, Erik Gertz, ja Ulrike Genschel. Serum 25-hydroxyvitamin D Is Related to Indicators of Overall Physical Fitness in Healthy Postmenopausal Women. 2009.

MLA-viite

Stewart, Jeanne W., et al. Serum 25-hydroxyvitamin D Is Related to Indicators of Overall Physical Fitness in Healthy Postmenopausal Women. 2009.

Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.