Cyclamen mite and the board mite and their control
Smith, Floyd F.
Cyclamen mite and the board mite and their control - Washington 1933 - 1-14 p. - Cyclamen, Mite United States Department of Agriculture. Circular No. 301 .
Cyclamen mite and the board mite and their control - Washington 1933 - 1-14 p. - Cyclamen, Mite United States Department of Agriculture. Circular No. 301 .