1. Arscott, G. H., and P. E. Bernier, 1961. Application of specific gravity to the determination of egg shell thickness. Page XX in: Agriculture Science Laboratory Exercise for High School Students. Agriculture Science No. 2. School of Agriculture, Oregon State University, Corvallis, OR.
2. Influence of ascorbic acid, calcium and phosphorus on specific gravity of eggs;Arscott;Poultry Sci.,1962
3. Official Methods of Analyses,1980
4. The calcium and phosphorus requirements of breeder turkeys;Atkinson;Poultry Sci.,1964
5. Distribution of pores on hatching and nonhatching turkey eggs;Christensen;Poultry Sci.,1983