Gaya APA
Ryan, Frank. (2019).
Virusphere: ebola, aids, influenza and the hidden world of the virus .
Great Britain:
William Collins.
Gaya Chicago
Ryan, Frank.
Virusphere: ebola, aids, influenza and the hidden world of the virus.
Great Britain:
William Collins,
2019.
Text.
Gaya MLA
Ryan, Frank.
Virusphere: ebola, aids, influenza and the hidden world of the virus.
Great Britain:
William Collins,
2019.
Text.
Gaya Turabian
Ryan, Frank.
Virusphere: ebola, aids, influenza and the hidden world of the virus.
Great Britain:
William Collins,
2019.
Print.