Álvarez Bogantes, C., Villalobos Víquez, G., Rodríguez Méndez, D., Herrera Monge, M. F., & Delgado Valverde, A. (2019). Physical Activity Levels at School: Use of the System for Observing Play and Leisure Activity in Youth (SOPLAY).
Čikaški stil citiranjaÁlvarez Bogantes, Carlos, Grettel Villalobos Víquez, Diego Rodríguez Méndez, María Fernanda Herrera Monge, i Antonio Delgado Valverde. Physical Activity Levels At School: Use of the System for Observing Play and Leisure Activity in Youth (SOPLAY). 2019.
MLA način citiranjaÁlvarez Bogantes, Carlos, et al. Physical Activity Levels At School: Use of the System for Observing Play and Leisure Activity in Youth (SOPLAY). 2019.
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