Cita APA (7a ed.)

Lehman, H. C. (2017). Age and achievement (Princeton legacy library edition.). Published for the American Philosophical Society by Princeton University Press.

Cita Chicago Style (17a ed.)

Lehman, Harvey C. Age and Achievement. Princeton legacy library edition. Princeton, N.J.: Published for the American Philosophical Society by Princeton University Press, 2017.

Cita MLA (8a ed.)

Lehman, Harvey C. Age and Achievement. Princeton legacy library edition. Published for the American Philosophical Society by Princeton University Press, 2017.