Cita APA (7th ed.)

Marsh, H., Gerlach, E., Trautwein, U., Lüdtke, O., & Brettschneider, W. (2007). Longitudinal study of preadolescent sport self-concept and performance: Reciprocal effects and causal ordering.

Cita Chicago (17th ed.)

Marsh, H., E. Gerlach, U. Trautwein, O. Lüdtke, i W. Brettschneider. Longitudinal Study of Preadolescent Sport Self-concept and Performance: Reciprocal Effects and Causal Ordering. 2007.

Cita MLA (9th ed.)

Marsh, H., et al. Longitudinal Study of Preadolescent Sport Self-concept and Performance: Reciprocal Effects and Causal Ordering. 2007.