BOOKQUE

The Recognition and Life History of the Major Insect and Mite Pests of Ornamental Shrubs and Shade Trees of British Columbia
British Columbia. Ministry of Agriculture , H. S. Gerber , N. V. Tonks , D. A. Ross , British Columbia. Department of Agriculture
· 1980
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Pest Problems in Small Greenhouses and Indoor Plantings
Norman V. Tonks , Colombie-Britannique. Ministry of Agriculture and Food , British Columbia. Ministry of Agriculture and Food
· 1982
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Growing fuchias
John H. Crossley , Samuel Arrowsmith , N. V. Tonks
· 1972
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Growing Fuchsias
Canada. Department of Agriculture , N. V. Tonks , S. Arrowsmith , J. H. Crossley
· 1969
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Insect and Mite Pests of Ornamental Shrubs and Shade Trees of British Columbia
H. S. Gerber , British Columbia. Ministry of Agriculture, Fisheries and Food , Norman V. Tonks , D. A. Ross
· 1994
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Occurrence of a Midge, Oligotrophus Betheli Felt on Juniper on Vancouver Island, British Columbia (Diptera : Cecidomyiidae)
Canada. Department of Agriculture , N. V. Tonks
· 1974
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The Recognition and Life History of the Major Insect and Mite Pests of Ornemental Shrubs and Shade Trees of British Columbia
H.S. Gerber , N.V. Tonks , D.A. Ross , Colombie-Britannique. Department of Agriculture
· 1962
No image available
Insect and Mite Pests of Ornamental Shrubs and Shade Trees of British Columbia
British Columbia. Ministry of Agriculture and Food
· 1983