APA-viite

Rehkopf, D. H., Rosero Bixby, L., & Dow, W. H. (2016). A cross-national comparison of 12 biomarkers finds no universal biomarkers of aging among individuals aged 60 and older.

Chicago-tyylinen lähdeviittaus

Rehkopf, David H., Luis Rosero Bixby, ja William H. Dow. A Cross-national Comparison of 12 Biomarkers Finds No Universal Biomarkers of Aging Among Individuals Aged 60 and Older. 2016.

MLA-viite

Rehkopf, David H., Luis Rosero Bixby, ja William H. Dow. A Cross-national Comparison of 12 Biomarkers Finds No Universal Biomarkers of Aging Among Individuals Aged 60 and Older. 2016.

Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.