Cita APA (7th ed.)

Spolsky, B. (1989). Conditions for second language learning: Introduction to a general theory. Oxford University.

Cita Chicago (17th ed.)

Spolsky, Bernard. Conditions for Second Language Learning: Introduction to a General Theory. Oxford: Oxford University, 1989.

Cita MLA (9th ed.)

Spolsky, Bernard. Conditions for Second Language Learning: Introduction to a General Theory. Oxford University, 1989.