Determination of airbone fibre number concentrations : a recommended method, by phase-contrast optical microscopy .
Card's contents:
552,854 DETERMINATION Determination of airbone fibre number concentrations : a recommended method, by phase-contrast optical microscopy (membrane filter method). - Geneva : World Health Organization, 1997. - VIII, 53 s. : il. ; 24 cm ISBN 92-4-154496-1
