Conservation of marine benthic biocenoses in the North Sea and the Baltic /

by Mitchell, Roger
Published 1987

Crop growth and culture

by Mitchell, Roger.L.
Published 1970

Crop growth and culture

by Mitchell, Roger L
Published 1970

Physiology of crop plants /

by Gardner, Franklin Pierce 1924-1992, Gardner, Franklin Pierce 1924-1992, Mitchell, Roger L. 1932-, Pearce, Robert Brent 1936-
Published 1985

Physiology of crop plants /

by Gardner, Franklin Pierce 1924-1992, Gardner, Franklin Pierce 1924-1992, Mitchell, Roger L. 1932-, Pearce, Robert Brent 1936-
Published 2019

Papers of the annual meeting /

Published 1979