Gaya APA

Heikki, M, H., James, M, L. (1995). Bioloical Control : Benefits and Risks . Australia: Press Syndicate of the University of Cambridge.

Gaya MLA

Heikki, M.T, Hokkanen,., James, M., Lynch,. "Bioloical Control : Benefits and Risks". Australia: Press Syndicate of the University of Cambridge, 1995. Text.