UNIKEL SPECTOR, L. Ralph Thomlinson. Urban structure : the social and spatial character of cities. Nueva York : Random House, 1969. 335 p. Estudios Demográficos y Urbanos, [S. l.], v. 4, n. 02, p. 250–251, 1970. DOI: 10.24201/edu.v4i02.1546. Disponível em: https://estudiosdemograficosyurbanos.colmex.mx/index.php/edu/article/view/1546. Acesso em: 20 abr. 2024.