Gaya APA
Ig, H., Tidball), J., R., T., (. (1984).
Viral Infections of the Nervous System .
The United State of America:
Raven Press.
Gaya MLA
Ig, H., Tidball), J., R., T., (..
Viral Infections of the Nervous System.
The United State of America:
Raven Press,
1984.
Text.