Craig, H. T. (1969). Thresholds to adult living (2nd ed.). Bennett.
Cita Chicago Style (17a ed.)Craig, Hazel Thompson. Thresholds to Adult Living. 2nd ed. Peoria, Ill: Bennett, 1969.
Cita MLA (9a ed.)Craig, Hazel Thompson. Thresholds to Adult Living. 2nd ed. Bennett, 1969.
Precaución: Estas citas no son 100% exactas.