1. “Standard samples”: How “standard” are they?;Abbey;Geostand. Newsl.,1977
2. Reference materials—Rock samples SY-2, SY-3, MRG-1;Abbey;CANMET Rep. 79-35,1979
3. Studies in “standards samples” of silicate rocks and minerals 1969–1982;Abbey;Geol. Surv. Can., Pap.,1983
4. Reference samples of rocks—the search for “best values”;Abbey;Geostand. Newsl.,1979
5. The homogeneity of six geochemical exploration reference samples;Allcott,1975