World survey of education. 3. : Secondary education.

Sampling : an introduction for social scientists /

General principles of good sampling practice. /

Secondary metabolism /

Industrial source sampling /

Sample data : Richard Kitta & Martin Kudla /

Sampling of particulate materials : theory and practice /

Secondary Uranium Minerals /

Sampling, microbiological monitoring of environments /

Reflex. Tutorials and sample applications.

Sampling Inspection and Quality Control.

Teaching in the middle and secondary schools. : Planning for competence. /

Secondary and middle school teaching methods. /

The Direct Detection of Microorganisms in Clinical Samples /

Maximum likelihood estimation in small samples /

Secondary rhinoplasty and nasal reconstruction. /

Bioactive secondary metabolite of microorganisms. /

The Sampling and Estimation of Ore in a Mine.

Description and sampling of contaminated soils. : A field pocket guide.

Surveying /

Secondary analysis of sample surveys : principles, procedures and potentialities /