APA Style
Campbell, N, A. et al (2009).
Biology
Concepts & Connections
Sixth Edition (Pertama).
San Fransisco:
Pearson Education, Inc..
MLA Style
Campbell, Neil, A.. et al.
"Biology
Concepts & Connections
Sixth Edition".
Pertama
San Fransisco:
Pearson Education, Inc.,
2009.
Text.