Hartley, S. F. (1972). Population quantity vs. quality: A sociological examination of the causes and consequences of the population explosion. Prentice-Hall.
Citazione stile Chigago Style (17a edizione)Hartley, Shirley Foster. Population Quantity Vs. Quality: A Sociological Examination of the Causes and Consequences of the Population Explosion. Englewood Cliffs, N.J.: Prentice-Hall, 1972.
Citatione MLA (8a ed.)Hartley, Shirley Foster. Population Quantity Vs. Quality: A Sociological Examination of the Causes and Consequences of the Population Explosion. Prentice-Hall, 1972.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.