Citação norma APA

Kracht, C. L., Webster, E. K., & Staiano, A. E. (2020). A natural experiment of state-level physical activity and screen-time policy changes early childhood education (ECE) centers and child physical activity. BMC Public Health.

Citação norma Chicago

Kracht, Chelsea L., E. Kipling Webster, and Amanda E. Staiano. "A Natural Experiment of State-level Physical Activity and Screen-time Policy Changes Early Childhood Education (ECE) Centers and Child Physical Activity." BMC Public Health 2020.

Citação norma MLA

Kracht, Chelsea L., E. Kipling Webster, and Amanda E. Staiano. "A Natural Experiment of State-level Physical Activity and Screen-time Policy Changes Early Childhood Education (ECE) Centers and Child Physical Activity." BMC Public Health 2020.

Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.