एपीए उद्धरण

León, P. (1997). Biosecurity in the use of genetically modified crops.

शिकागो स्टाइल उद्धरण

León, Pedro. Biosecurity in the Use of Genetically Modified Crops. 1997.

एमएलए उद्धरण

León, Pedro. Biosecurity in the Use of Genetically Modified Crops. 1997.