Greenspan, J., & Valkova, S. (2015). Documenting the Missed Opportunity Period for Influenza Vaccination in Office-based Settings. Online J Public Health Inform.
استشهاد بنمط شيكاغوGreenspan, Joel, و Silvia Valkova. "Documenting the Missed Opportunity Period for Influenza Vaccination in Office-based Settings." Online J Public Health Inform 2015.
MLA استشهادGreenspan, Joel, و Silvia Valkova. "Documenting the Missed Opportunity Period for Influenza Vaccination in Office-based Settings." Online J Public Health Inform 2015.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.