Gaya APA
Biology
.
(2016).
:
OpenStax.
Gaya Chicago
Biology
.
Cet.1.
:
OpenStax,
2016.
Electronic sources.
Gaya MLA
Biology
.
Cet.1.
:
OpenStax,
2016.
Electronic sources.
Gaya Turabian
Biology
.
:
OpenStax,
2016.
Electronic sources.