[1]
García Fernández, J. y Fernández Gavira, J. 2010. Programas y servicios para personas mayores en centros de fitness de Sevilla (Programs and services for older people in fitness centers in Seville). Retos. 17, (ene. 2010), 90–92. DOI:https://doi.org/10.47197/retos.v0i17.34681.