References
- APHA, 1992: Standard Methods for the Examination of Water and Wastewater. 18th ed. — APHA-AWWA-WPCF, Washington DC.
- Fielding, A. H., 1988: Discriminant analysis on a microcomputer. — J. Biol. Educ. 22: 115–117.
- Kuczynski, D., 1994: Environmental study of an urban highly polluted watercourse (Morón stream, Buenos Aires, Argentina). — J. med. Ecol. & Environ. Health. I: 1–14.
- Loez, C. R. & SalibiÁN, A., 1990: First reports on the phytoplankton and the physico-chemical characteristics of the Reconquista River (Buenos Aires, Argentine), a polluted urban river. — Rev. Hydroh. Trop. 23: 283–296 (in French).
- Pla, L. E., 1986: Multivariate Analysis: Principal Components Method. — Organization of American States, Washington DC, 94 pp (in Spanish).
- Topalian, M. L., Loez, C. R. & SalibiÁN, A., 1990: Heavy metals in the Reconquista river (Buenos Aires): preliminary results. — Acta Bioq. Clin. Latinoamer. 24: 171–176 (in Spanish).
- Zar, J. H., 1984: Biostatistical Analysis. — Prentice Hall, New Jersey, 718 pp.