एपीए उद्धरण

Villalobos, W., Rivera, C., & Harnmond, R. W. (1997). Occurrence of citrus viroids in Costa Rica.

शिकागो स्टाइल उद्धरण

Villalobos, W., C. Rivera, और R W. Harnmond. Occurrence of Citrus Viroids in Costa Rica. 1997.

एमएलए उद्धरण

Villalobos, W., C. Rivera, और R W. Harnmond. Occurrence of Citrus Viroids in Costa Rica. 1997.