APA način citiranja (7. izdanje)

Howard, D. (2007). A need for a simplified approach to venous thromboembolism prophylaxis in acute medical inpatients.

Čikaški stil citiranja (17. izdanje)

Howard, D. A Need for a Simplified Approach to Venous Thromboembolism Prophylaxis in Acute Medical Inpatients. 2007.

MLA način citiranja (9. izdanje)

Howard, D. A Need for a Simplified Approach to Venous Thromboembolism Prophylaxis in Acute Medical Inpatients. 2007.