McDonald, W.A.
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Greenhouse watering: a simple control circuit for boom sprinklers. 1976. Scarratt, J.B.; McDonald, W.A. Tree Planters' Notes 27(1):15 & 23.
Scarratt, J.B.; McDonald, W.A.
Year: 1976
Catalog ID: 38669
Issued by: Great Lakes Forestry Centre
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