Campbell, Douglas Houghton, 1859-1953.
The evolution of the land plants (Embryophyta) / by Douglas Houghton Campbell. - India : Central book depot , 1961 - ix, 731 p. : ill. ; 24 cm.
Bibliography at end of some of the chapters.
40012708
Embryophyta.
Plants--Evolution.
Plants--Classification.
QK95 / .C27
581.38 / CAE
The evolution of the land plants (Embryophyta) / by Douglas Houghton Campbell. - India : Central book depot , 1961 - ix, 731 p. : ill. ; 24 cm.
Bibliography at end of some of the chapters.
40012708
Embryophyta.
Plants--Evolution.
Plants--Classification.
QK95 / .C27
581.38 / CAE