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Blueprints for independence : the new states and their constituting instruments / R.C. Winter.
- 342 W784
- Winter, R. C.,
- Djambatan,
- Amsterdam :
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Universal ovicidal action of special mineral oil washes as a winter wash for deciduous fruit trees / by P.A. Blijdorp.
- Bataafsche petroleum maatschappij,
- 1938.
- Amsterdam :
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On a mineral oil spray to be used in the winter treatment of deciduous trees, combining the insecticidal properties of a tar oil wash and a mineral oil wash
- Bataafsche petroleum maatschappij,
- 1938.
- Amsterdam :