Insects and diseases of fruit nursery stocks and their control
Gambrell, F.L., Gilmer, R.M.
Insects and diseases of fruit nursery stocks and their control - Geneva 1956 - 50 p. - No. 776; New York Agricultura .
Insects and diseases of fruit nursery stocks and their control - Geneva 1956 - 50 p. - No. 776; New York Agricultura .