Hoisehold insects and their control
Gibson, Arthur, Twinn, C.R.
Hoisehold insects and their control - Ottawa 1929 - 1-84 p. - Insects Canada Department of Agriculture. Bbulletin No. 112 .
Hoisehold insects and their control - Ottawa 1929 - 1-84 p. - Insects Canada Department of Agriculture. Bbulletin No. 112 .