Gaya APA
International Edition for IGOSE and a Level Biology. (2002).
New Delhi, India:
Cambridge University.
Gaya Chicago
International Edition for IGOSE and a Level Biology.
.
New Delhi, India:
Cambridge University,
2002.
.
Gaya MLA
International Edition for IGOSE and a Level Biology.
.
New Delhi, India:
Cambridge University,
2002.
.
Gaya Turabian
International Edition for IGOSE and a Level Biology.
New Delhi, India:
Cambridge University,
2002.
.