Lawrence, George Hill Mathewson,
An introduction to plant taxonomy / Georce H. M. Lawrence, Illus. by Marion Ruff Sheehan. - New York : Macmillan, c1955. - viii, 179 p. : ill. ; 22 cm.
Includes index.
55000879
Plants--North America--Classification.
QK95 / .L3
580 / LAI
An introduction to plant taxonomy / Georce H. M. Lawrence, Illus. by Marion Ruff Sheehan. - New York : Macmillan, c1955. - viii, 179 p. : ill. ; 22 cm.
Includes index.
55000879
Plants--North America--Classification.
QK95 / .L3
580 / LAI