APA (7th ed.) Citation

Yeap, B., Beilin, J., Shi, Z., Knuiman, M., Olynyk, J., Bruce, D., & Milward, E. (2009). Serum testosterone levels correlate with haemoglobin in middle-aged and older men. Blackwell Publishing.

Chicago Style (17th ed.) Citation

Yeap, B., J. Beilin, Z. Shi, M. Knuiman, John Olynyk, D. Bruce, and E. Milward. Serum Testosterone Levels Correlate with Haemoglobin in Middle-aged and Older Men. Blackwell Publishing, 2009.

MLA (9th ed.) Citation

Yeap, B., et al. Serum Testosterone Levels Correlate with Haemoglobin in Middle-aged and Older Men. Blackwell Publishing, 2009.