Purves,. (1977). Trace Element contamination of the environ. Elsevier.
Citación estilo ChicagoPurves. Trace Element Contamination of the Environ. Amsterdam: Elsevier, 1977.
Cita MLAPurves. Trace Element Contamination of the Environ. Elsevier, 1977.
Warning: These citations may not always be 100% accurate.