Humus and the farmer

by Friend Sykes
Bok · Engelsk · 1946 Frank Sykes

Utgitt	London : Faber and Faber limited , [1946]
Omfang	XIX, 288 s. : pl., kart, port
Opplysninger	"First published in Mcmxlvi."
Emner	Agriculture Agriculture - Great Britain Humus Manures Soils