Sipsma, H. L., Canavan, M., Gilliam, M., & Bradley, E. (2017). Impact of social service and public health spending on teenage birth rates across the USA: An ecological study. BMJ Open.
استشهاد بنمط شيكاغوSipsma, Heather L., Maureen Canavan, Melissa Gilliam, و Elizabeth Bradley. "Impact of Social Service and Public Health Spending On Teenage Birth Rates Across the USA: An Ecological Study." BMJ Open 2017.
MLA استشهادSipsma, Heather L., Maureen Canavan, Melissa Gilliam, و Elizabeth Bradley. "Impact of Social Service and Public Health Spending On Teenage Birth Rates Across the USA: An Ecological Study." BMJ Open 2017.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.