Haglund, B., & Cnattingius, S. (1990). Cigarette smoking as a risk factor for sudden infant death syndrome: A population-based study.
استشهاد بنمط شيكاغوHaglund, B., و S. Cnattingius. Cigarette Smoking As a Risk Factor for Sudden Infant Death Syndrome: A Population-based Study. 1990.
MLA استشهادHaglund, B., و S. Cnattingius. Cigarette Smoking As a Risk Factor for Sudden Infant Death Syndrome: A Population-based Study. 1990.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.