APA (7th ed.) Citation

López Walle, J. M., Tristán Rodríguez, J. L., & Balaguer Solá, I. (2013). Intrinsic and extrinsic sport motivation as a function of age.

Chicago Style (17th ed.) Citation

López Walle, Jeanette M., José Leandro Tristán Rodríguez, and Isabel Balaguer Solá. Intrinsic and Extrinsic Sport Motivation as a Function of Age. 2013.

MLA (9th ed.) Citation

López Walle, Jeanette M., et al. Intrinsic and Extrinsic Sport Motivation as a Function of Age. 2013.