1. (1983). Planning and Analysis of Observational Studies. Wiley, Chichester and New York.
2. and (1957). Experimental Designs, 2nd edition. Wiley & Sons, New York.
3. Pseudoreplication and the Design of Ecological Field Experiments
4. and (1993), “Trends in faecal coliform densities at seven target beaches in Sydney”. Scientific Services Water Board Report No. 92/63.
5. and (1989). Statistical Methods, 8th edition. Iowa State University Press, Ames, Iowa.