Cita APA (7th ed.)

Purpura, J. E. (1999). Learner strategy use and performance on language tests: A structural equation modeling approach. Cambridge University Press.

Cita Chicago (17th ed.)

Purpura, James E. Learner Strategy Use and Performance on Language Tests: A Structural Equation Modeling Approach. Cambridge: Cambridge University Press, 1999.

Cita MLA (8th ed.)

Purpura, James E. Learner Strategy Use and Performance on Language Tests: A Structural Equation Modeling Approach. Cambridge University Press, 1999.