Author

Daniel W. Verwoerd

2 books found

Cover of African Swine Fever Virus

African Swine Fever Virus

William R. Hess, Peter G. Howell, Daniel W. Verwoerd · First published 2013

Cover of African Swine Fever Virus. - Bluetongue Virus

African Swine Fever Virus. - Bluetongue Virus

William R. Hess, Peter G. Howell, Daniel W. Verwoerd · First published 1971