Hassenkam, Henrik. “Tore Thonstad : Education and Manpower. Theoretical Models and Empirical Applications. London: Oliver & Boyd, 1969. 162 Pp. Pris: 63 S”. Nationaløkonomisk Tidsskrift, bd. 107, januar 1969, https://tidsskrift.dk/nationaloekonomisktidsskrift/article/view/61417.