Pullin, A. S. (2002). Conservation Biology. Cambridge University.
Chicago Style (17th ed.) ZitazioaPullin, Andrew S. Conservation Biology. Cambridge: Cambridge University, 2002.
MLA (9th ed.) ZitazioaPullin, Andrew S. Conservation Biology. Cambridge University, 2002.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.