Παραπομπή σε μορφή APA (7η εκδ.)

Butler, C., Hood, K., Verheij, T., Little, P., Melbye, H., Nuttall, J., . . . Goossens, H. (2009). Variation in antibiotic prescribing and its impact on recovery in patients with acute cough in primary care: Prospective study in 13 countries.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Butler, C., et al. Variation in Antibiotic Prescribing and Its Impact on Recovery in Patients with Acute Cough in Primary Care: Prospective Study in 13 Countries. 2009.

Παραπομπή σε μορφή MLA (9th εκδ.)

Butler, C., et al. Variation in Antibiotic Prescribing and Its Impact on Recovery in Patients with Acute Cough in Primary Care: Prospective Study in 13 Countries. 2009.