The principles of field drainage.
Nicholson, Harry Helstrip.
The principles of field drainage. - Cambridge [Eng.] University press, 1942. - 165 p. illus. 22 cm.
"A bibliography of field drainage" : p. 162.
agr43000073
Drainage--Great Britain.
S621 / .N5
631.6
The principles of field drainage. - Cambridge [Eng.] University press, 1942. - 165 p. illus. 22 cm.
"A bibliography of field drainage" : p. 162.
agr43000073
Drainage--Great Britain.
S621 / .N5
631.6