Pornpen Pathanasophon. 1994. Characterization and immunological studies of riemerella anatipestifer isolated from ducks in Thailand and development of the vaccines. S.l.:Nippon Veterinary and Animal Science University;
Pornpen Pathanasophon. (1994) Characterization and immunological studies of riemerella anatipestifer isolated from ducks in Thailand and development of the vaccines. Nippon Veterinary and Animal Science University:S.l.
Pornpen Pathanasophon. Characterization and immunological studies of riemerella anatipestifer isolated from ducks in Thailand and development of the vaccines. S.l.:Nippon Veterinary and Animal Science University, 1994. Print.
Pornpen Pathanasophon. (1994) Characterization and immunological studies of riemerella anatipestifer isolated from ducks in Thailand and development of the vaccines. Nippon Veterinary and Animal Science University:S.l.