1997. Determination of airborne fibre number concentrations: <a> recommended method, by phase-contrast optical microscopy (membrane filter method). Geneva: WHO.
Citace podle APA (7th ed.)(1997). Determination of airborne fibre number concentrations: <a> recommended method, by phase-contrast optical microscopy (membrane filter method). WHO.
Citace podle Chicago (17th ed.)Determination of Airborne Fibre Number Concentrations: <a> Recommended Method, by Phase-contrast Optical Microscopy (membrane Filter Method). Geneva: WHO, 1997.
Citace podle MLA (9th ed.)Determination of Airborne Fibre Number Concentrations: <a> Recommended Method, by Phase-contrast Optical Microscopy (membrane Filter Method). WHO, 1997.
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