American Physiological Society (1887- ), American Society of Zoologists, Campbell, J. W., & Goldstein, L. (1972). Nitrogen metabolism and the environment: A joint symposium of the American Physiological Society and the American Society of Zoologists held at Bloomington, Indiana, U.S.A., in August, 1970. Academic Press.
Čikaški stil citiranja (17. izdanje)American Physiological Society (1887- ), American Society of Zoologists, J. W. Campbell, i Leon Goldstein. Nitrogen Metabolism and the Environment: A Joint Symposium of the American Physiological Society and the American Society of Zoologists Held at Bloomington, Indiana, U.S.A., in August, 1970. London, New York: Academic Press, 1972.
MLA način citiranja (8. izdanje)American Physiological Society (1887- ), et al. Nitrogen Metabolism and the Environment: A Joint Symposium of the American Physiological Society and the American Society of Zoologists Held at Bloomington, Indiana, U.S.A., in August, 1970. Academic Press, 1972.