Salazar, R., & Valverde, M. (1999). Biotechnology, biosecurity and legislation. The case of Costa Rica.
Chicago Style aipamenaSalazar, Roxana, y Max Valverde. Biotechnology, Biosecurity and Legislation. The Case of Costa Rica. 1999.
MLA aipamenaSalazar, Roxana, y Max Valverde. Biotechnology, Biosecurity and Legislation. The Case of Costa Rica. 1999.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.