एपीए उद्धरण

Ortuno, A., Chacón, J., BonDurant, R., Noordhuizen, J., Perez, E., Conrad, P. A., & Hird, D. (1992). Prevalence and risk factors for Trichomonas foetus infection in cattle in northeastern Costa Rica.

शिकागो स्टाइल उद्धरण

Ortuno, Ana, Jorge Chacón, Robert BonDurant, Jos Noordhuizen, Enrique Perez, Patricia A. Conrad, और David Hird. Prevalence and Risk Factors for Trichomonas Foetus Infection in Cattle in Northeastern Costa Rica. 1992.

एमएलए उद्धरण

Ortuno, Ana, et al. Prevalence and Risk Factors for Trichomonas Foetus Infection in Cattle in Northeastern Costa Rica. 1992.