Cita APA

Van Donkersgoed, J., Janzen, E. D., Townsend, H. G., & Durham, P. J. (1990). Five field trials on the efficacy of a bovine respiratory syncytial virus vaccine.

Chicago Style Citation

Van Donkersgoed, Joyce, Eugene D. Janzen, Hugh G. Townsend, i Peter J. Durham. Five Field Trials On the Efficacy of a Bovine Respiratory Syncytial Virus Vaccine. 1990.

Cita MLA

Van Donkersgoed, Joyce, Eugene D. Janzen, Hugh G. Townsend, i Peter J. Durham. Five Field Trials On the Efficacy of a Bovine Respiratory Syncytial Virus Vaccine. 1990.