Ringing herbaceous plants
Hedrick, U.P., Taylor, O.M., Wellington, R.
Ringing herbaceous plants - Geneva 1907 - 194-235 p. - Plants New York Agricultural Experiment Station. Bulletin No. 288 .
Ringing herbaceous plants - Geneva 1907 - 194-235 p. - Plants New York Agricultural Experiment Station. Bulletin No. 288 .