Pays-Bas (1) Economic conditions (1) Density (1) Family relationships (1) Composition (1) Assaying (1) Agriculture (1) Communication (1) Foreign countries (1) Individual differences (1) Urbanization (1) Social status (1) Rural-urban migration (1) Rural population (1) Risk (1) Perspective (1) Inheritance and succession (1) Employment (Economic theory) (1) Difference (Psychology) (1) Cities and towns (1) Breast (1) Weight (1) Use (1) Usage (1) Age (1) Analysis (1) Social life and customs (1) Population (1) Membership (1) Migrations (1)