APA aipamena

Siegel, D., Benowitz, N., Ernster, V. L., Grady, D. G., & Hauck, W. W. (1992). Smokeless tobacco, cardiovascular risk factors, and nicotine and cotinine levels in professional baseball players.

Chicago Style aipamena

Siegel, D., N. Benowitz, V L. Ernster, D G. Grady, and W W. Hauck. Smokeless Tobacco, Cardiovascular Risk Factors, and Nicotine and Cotinine Levels in Professional Baseball Players. 1992.

MLA aipamena

Siegel, D., et al. Smokeless Tobacco, Cardiovascular Risk Factors, and Nicotine and Cotinine Levels in Professional Baseball Players. 1992.