Work cat.: Ismail, S.N.A. Micromorphometric soil-porosity characterization by means of electro-optical image analysis (quantimet 720), 1975.

Gloss. of soil micromorphology, 1978: p. 66 (soil porosity)

Gloss. soil: p. 20.

Thompson, L.M. Soils and soil fertility: p. 59.