APA način citiranja

Sprengel, R., Kaleta, E. F., & Will, H. (1988). Isolation and characterization of a hepatitis B virus endemic in herons.

Čikaški stil citiranja

Sprengel, R., E F. Kaleta, i H. Will. Isolation and Characterization of a Hepatitis B Virus Endemic in Herons. 1988.

MLA način citiranja

Sprengel, R., E F. Kaleta, i H. Will. Isolation and Characterization of a Hepatitis B Virus Endemic in Herons. 1988.