Purpura, J. E. (1999). Learner strategy use and performance on language tests: A structural equation modeling approach. Cambridge University Press.
Цитирование в стиле Чикаго (17-е изд.)Purpura, James Enos. Learner Strategy Use and Performance on Language Tests: A Structural Equation Modeling Approach. Cambridge, UK: Cambridge University Press, 1999.
Цитирование MLA (9-е изд.)Purpura, James Enos. Learner Strategy Use and Performance on Language Tests: A Structural Equation Modeling Approach. Cambridge University Press, 1999.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.