Dyfyniad APA

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.

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.