1. Some relations between flock size and agonistic behavior in domestic hens;Banks;Phys. Zool.,1957
2. Bressler, G. O., and H. V. Walton, 1956. The Penn State solar house. Pennsylvania Agr. Exp. Sta. Progress Report No. 162.
3. Adverse effects of crowding on reproduction and lactation of mice and two generations of their progeny;Christian;Naval Medical Research Institute Research Report,1957
4. Social behavior of the domestic fowl;Guhl;Kansas Agr. Exp. Sta. Tech. Bul.,1953
5. Effects of increased population density on the adrenals of cockerels;Siegel;Poultry Sci.,1958