Stages in the evolution of plant species /
Clausen, Jens
Stages in the evolution of plant species / Jens Clausen - New York : Hafner Publishing Company, 1967. - viii, 206 p. ; 23 cm.
Includes index.
Evolution -- plant species
Plant -- diseases
Plants -- Evolution
581.38 CLA
Stages in the evolution of plant species / Jens Clausen - New York : Hafner Publishing Company, 1967. - viii, 206 p. ; 23 cm.
Includes index.
Evolution -- plant species
Plant -- diseases
Plants -- Evolution
581.38 CLA