The sow-improving her efficiency /
English, Peter R.
The sow-improving her efficiency / Peter R. English, William J. Smith, Alastair MacLean. - Suffolk : Farming Press, c1977. - 311 pages : Illustration ; 22 cm.
Includes index.
0852360819
Hogs.
Sows.
Swine--Breeding.
The sow-improving her efficiency / Peter R. English, William J. Smith, Alastair MacLean. - Suffolk : Farming Press, c1977. - 311 pages : Illustration ; 22 cm.
Includes index.
0852360819
Hogs.
Sows.
Swine--Breeding.